Haener’s arm was as weak as advertised, if he did not play for the Saints we wouldn’t be talking about him at all. Only a Saints announcer would call that pass he made a “bullet”.
I’m surprised that’s your take. The consensus is he doesn’t have exceptional arm strength, and that’s certainly true. Curry described it as good but not great. Might be some outlier opinions that describe his arm as weak, but that seems like a lazy conclusion that if it’s not notably strong, it must be weak. From what I’ve read, most seem to think it’s average / good enough. I didn’t have concerns watching him today.