The uprising wasn't "possible". The preparations were definite. That's like some country getting their soldiers ready, their jet fighters fueled up, their battleships positioned in range of enemy territory, and then deciding to say "eh, fuck it, lets go home." Not happening. The uprising would've more been civil war, and other countries would've came in and ruined the hell out of konoha and the fire country. So no, he avoided something that DEFINITELY was going to happen. I'm with you on the third though, sometimes being too soft lets shit like this happen.