Yes, that’s what I would do and now that I think of it. I don’t recall getting alerts for two recent flights. So will probably do that now.
Unfortunately, some updates just don’t install correctly. It’s actually not a bad idea to delete and reinstall some* apps from time to time to ensure you’re getting all functionality.
I did still get text messages for checkin.
*except apps that store critical info locally on your device….you could lose that data forever!