Honestly if Poseidon really wanted to fuck with Odysseus and really drive home how much of a hypocrite he is while being ruthless, spiteful and petty. He would have blinded the entire crew and leave them there. They didn't die, look how merciful he is! At least they lived, didn't they? Now they have all the time to reflect on what they did. Technically he didn't interfere with fate, he lets them go home. Nevermind on being condemned to a slow death sailing aimlessly on the sea...
Adding more salt would be blinding Penelope and Telemachus too so none of the family can see each other.

















