You're only as good as your worst critic's worst-case scenarios belly-ached after the fact.
"They should have known this would happen."
Replace "they" with any public office, sports team, race or gender advocate, Facebook group, media outlet, vehicle manufacturer, business sector, natural resource extractor or cooking class.
No they shouldn't.
And if they did ... why would they go ahead and do it? Really. If someone could predict the exact future, know the exact outcome before it were to happen, we wouldn't have to be concerned with electing them into office, putting them through a hiring process, or liking their Facebook page ... their amazing future-assuring skill-set would secure them a higher place than that.
Furthermore (bringing it back to a less deity-related omnipotence) — and asked squarely to those throwing stones — if "they" did admit beforehand that what they were about to do had chances for error, but after substantial research, with the vast majority of any "error factor" removed, they decided to forge ahead ... you'd give them shit for that too.
Go back through time:
HEADLINE: Winged man falls to the sea
"Did you see that? Icarus — that stupid idiot. Clearly that waxy glue wasn't going to hold those feathers together when he got that close to the sun."
Too dated? Ok, a bit more recent then ...
HEADLINE: Hindenburg explodes at docking
"Big surprise. It blew up. Well of course they should have seen it coming; the whole damn airship was filled with hydrogen."
HEADLINE: COVID vaccine rollouts face continued challenges and shortages
"They had to have known going in there would be all sorts of troubles with the vaccine rollout."
It is so easy to find faults after the fact. To sit on a high horse and throw low blows after the fact isn't impressive.
Granted, going into an issue knowing that not all the Ts have been crossed isn't great either. But you have to believe it's done for the greater good. If everyone who ever tried anything didn't do it because somewhere, sometime down the road, someone would find a fault or would tug on a thread long enough until they found a flaw, we'd never get ahead. We'd still be huddled in caves and throwing rocks at our enemies instead of where we are today . . . huddled by our keyboards throwing dispersions at them.