idk man, evey time i see people refering to tallulah as "just the sweetest" i can immediately tell that they are not usually watchers from phil's pov, and -like it happens to most of the islanders and the other eggs- they dont know her. let me explain:
yes tallulah is sweet, she is very kind, and she took to heart wilbur's words about "giving love to everyone" because everyone deserves it. she listens to whatever the parents tell her to do, she always wears armor, she's quiet and will not hit you to make you read her signs but instead she'll shake a maraca.
tallulah is also, however, a fucking menace.
she is wilburs child TO THE CORE, self-deprecating, angsty, a drama queen and always arguing with phil. the day that phil got her bed from her chest she literally told him "if you dont give it to me i will kill myself :)" took off all her armor, stopped holding the totem and walked to the edge of the wall. she's incredibly sassy and bratty, has fights with chayanne over dumb shit ALL THE TIME, that have escalated to her hitting him when both are out of armor in the room. she has lost dozens of pets because of bad luck, but even so the MOMENT phil or chayanne accidentally kill one of the pets, it's a whole ordeal. she fights with phil constantly about the dumbest stuff, like if he wants to give her extra stacks of avocado toast, which she HATES but he LOVES.
and she also is EXTREMELY SAD. this is a kid that had a guy take care of her for a couple of weeks, with the sweetest of voices and building a home and a garden just because she asked for it, even when he was not the most minecraft savy. and then he had to go, and he has been gone for months. and for a while she didnt even know if she could ask phil to be officially part of the family because even when everyone is showing her love, she's afraid that if she takes parental affection from others, this means she's implying that wilbur is a bad dad.
she is not the best at PVP, but she's started learning because she doesn't want to die and doesnt want to be useless if she gets attacked again. she and chayanne always wear armor because phil has told them, very openly, that they an only do as much as they can to keep themselves safe, because in the end some stuff is inevitable, and you can only do so much. but he also encourages them to just, run around, and play, and they know they are free to run around and collect animals and get flowers, because phil trusts them and he trusts that if they need help, they'll get away and get him. in a broad sense, both of them are "well behaved" compared to the other eggs, because phil has always trusted them to make mistakes, pick themselves back up and keep going having learned, and in response they trust him that whenever he asks something of them, it's for a reason
hell, her first birthday was the day she was killed by the code monster. and when she was killed, she was being protected by three parents, two eggs and it still changed nothing. she is CONVINCED that she's never going to see wilbur again, that she's going to die before he comes back. and so she does what she can to keep wilbur's memory with her: she has his letters saved, she tends to el cielo de las tortugas, she gifts flowers and is kind and sweet to everyone. all while in private (in times with just phil and chayanne) she's very sad, and jokes ironically about her trauma and how she feels useless because of her out of game situations that make her be slower/less competent at the game
she is more isolated from the other eggs, sure, but i'm going to go on a wild guess and say that it's probably because her parent is on an european schedule, meanwhile most of the other eggs operate on american time. and for example, ramón and leo are also pretty isolated, but no one in the fandom is pushing for them to be more with the other eggs and parents...
all in all, i get that to some people tallulah's angst might be a drag, or seems almost out of nowhere, but im here to assure you that it's been building for months, to the point that phil's chat knows her as the angst queen, and we're always ready for the next sad thing she'll drop
idk, this past days after the fight i've seen some opinions on tallulah that have made me realize that it's not only the other parents and eggs that dont know her, but also many fans that never see her except from other streamers' povs, and that will obviously make the perception of her slightly biased so yeah