This is so challenging, limbo is the hardest place to be. I'm sorry you're going through that uncertainty. It's crazy that that program might get cancelled! That sucks SO hard. That first-acceptance excitement is so real, and I can only imagine how emotional it is for that opportunity to be in question now.
It's so easy to second-guess and critique your applications after the fact (I found a typo in the final, what I hoped to be hard-hitting sentence of my SOP after sending a version of it to four different schools...ugh). I think if you wrote honestly and to the best of your ability at the time, that's all you can ask of yourself. Write the things you love. Changing your writing to fit what you think a program wants means that if you do get accepted based on that change, you might not actually feel at home there as your true writer self.
I'm making an assumption here, but I know you replied to my post asking about my TA notification, so I'm guessing you might be referring to that school for the funding issue. They asked me to accept or decline the position by March 8, so maybe that's a more concrete date around which you can center your expectations for when second-round TA offers might go out. I hope that alleviates at least a tiny bit of uncertainty, and I really hope you get a TA offer!!!
I'm sending good vibes your way