Even having an opinionated choice would be better than what we currently have.
parrot-party
Maybe pig colons are next up on the transplant list.
The real reason it takes time is because we try not to harm people even in experimental drug testing. It would be much faster to simply toss shit at the wall and see what sticks, but that's not exactly humane. So we have to find analogues that hopefully mimick humans will enough, but they don't really work well. So it takes lots of time to build up enough evidence with those preliminary tests to convince the safety board to allow human trials. Then trials have to slowly scale up to limit the amount of people harmed by unforseen effects with a lot of time between as the safety board reviews the previous results before allowing the next test.
It's all good to do, but it does make development frustratingly slow sometimes. Especially when people are actively dying waiting for the new drugs.
Probably no where. They likely just left Twitter and carried on with whatever else they were doing.
They will probably need it for illumination when the ground war starts but they definitely don't need it during air raids.