By all accounts they’re making decisions based on their experiences on each platform, not maximum reach. This doesn’t happen in a vacuum: decisions are made by

By all accounts they’re making decisions based on their experiences on each platform, not maximum reach. This doesn’t happen in a vacuum: decisions are made by the executive and those decisions have consequences. If X wants scientists, make it enjoyable for scientists to participate. If anything, put blame at the feet of X’s leadership. Or enjoy the platform but accept that others don’t.