Unless your app is so trivial that syntax and APIs are the dominating factor, I'd wager the team transition will have so much other stuff to deal with. Hopefull

Unless your app is so trivial that syntax and APIs are the dominating factor, I'd wager the team transition will have so much other stuff to deal with. Hopefully, not least of all, the actual program logic. And team transitions are rather rare compared to the day to day dev that goes on. Optimising for them seems misplaced.