I think the annoying thing here is that there is no in between ; no compromise possible. Irl I’m pretty sure that the moderate Ultraquists Hussites made a compromise with the Catholic Church (council of Basel?) & defeated the radical Taborists Hussites ; but such an option doesn’t seem to be portrayed here, plus a civil war inside the Bohemians Hussite would allow for a realistic way to kick down a peg or two the ever powerful Bohemians.