NPO got in this predicament because every time they destroyed an alliance the members scattered around CN. Some formed new alliances and made ties that were in some extent anti-NPO, but possible most importantly some joined alliances and created a mini group of members that didn't like the NPO and slowly over time this group grew and grew until instead of some small group whispering in the corner it became a majority that openly talked about their dislike of NPO and with NPO's attitude toward letting old allies fall and breaking some of the supposedly most sacred treaties in CN people who hadn't been wronged began to see it and agree with them.
Also this GOONS mentioned is the Goon Order of Neutral Shoving the one that allied with NPO and got betrayed and destroyed by them it is not the new GOONS who according to what i have seen are just a new alliance with an old name (not that i don't like you i simply don't see you as the GOONS the have existed)