This is just brutal, though, but considering Kid was totally fine with his attack blasting through the people gathered on shore as well there’s some justification for it on Dorry and Brogy’s end.
And now of course we get the question of whether Kid or any of his crew survived but as I’ve said before, with this series unless I see a body or a grave marker or have definitive narrative confirmation that someone’s dead (and sometimes even that isn’t enough!) I assume there’s always a chance that a character is actually alive.
The thing with Kid, though, is that I don’t know where we go from here. He was always presented as a direct rival to Luffy in the sense that their end goal of becoming the pirate king was the same and that’s really the only ‘dream’ of his we’ve ever seen. Right now the only ‘true’ contenders for the One Piece are pretty much Luffy, Shanks and Blackbeard (and...whatever the Cross Guild is up to, I guess...) so I think this definitively takes him out of the running so the question is, at this point in the story, is Oda going to introduce some new purpose for him? Because without that it’s hard to say what him coming back would bring to the narrative...