In PvP, it all depends on who gets the jump, let's be honest. RNG and one bite kills against other players are a NWN thing that are never going away, the module would need to be designed from scratch.
In PvE, yeah, you probably won't be doing anything damagey unless you know the exact spell combo that's good for that dungeon. But the mobs do not have save gear. In fact, some of them have miserable saves, and are extremely vulnerable to certain spells that make it nigh impossible for them to fight back.
While having the jump will definitly help, you can survive ganks when you get jumped. It requires planning ahead and having a build that allows for such: getting more hp, good saves, discipline, etc.. But it is possible if you plan accordingly.
As forthe timestop nerf, i dont really think it was needed, but i don’t mind it. Anyone here that goes super aggro and starts getting people on a daily, even with timestop, would get such a big target on their backs they wouldn’t live very long unless they remained hidden behind a locked door.
Well on the first half, it is sad but true. The limits of NWN are forcing nearly every class into certain win builds. Elsewise it is just invitation of ganking. I've seen, heard and experienced myself quite often how those that were mostly RP builds and did just that, quite often going for extreme lengths to solve issues via RP just merely get ganked because it is easier, than to bother or play it out. I find that such ganking usually merely ends all kinds of RP and does not really bring it, beside rare exceptions.(And since for a while now there are no real repercussions or consequences when one does so, especially if nobody learns of it. I miss the random DP checks for such, since they eventually forced players to behave to a degree, even though some of them were actually aiming for DP-s.)
For the second half of your message:
I am just throwing out the name of a certain red mage who was once ruler of Barovia. Valio.
He did a lot and thus he became for a while even the ruler or Barovia:)
And he had a huge bounty on him, many folks were after him, and no he definetly did not stay behind close doors. Also during that time, the server was also smaller since Har'Akir has not been added neither.
So actually i would say what you write is only half true. Even if the player does a lot, it does not necessarily mean that folks will go after them. Just look at all the hundred thousand and more gold bounties that certain guys have and they are being left alone and are thriving. Whereas 5000 and such bounties are turned in easily.
Regarding Timestop, i've seen the devastation it can cause. Back in 2008-10 when it had 0 nerf to it. I can definetly say it was abused. It was something that was just left to the user what to do thereafter. There was nothing you could do once it was cast. Just think about it, if Dilisnya would just cast a Timestop and instead of running away, he would just have killed or turned all the PC-s into vampires? (I've met Dilisnya and he used a Timestop scroll to escape. back in 2009 or 2010?)
Or all the previous vampire MPC-s? They were expected to behave in a certain matter, which was not enforced nor required of PC-s. I would say that this change is just many of those changes regarding this spell that is trying to eradicate these non-liked uses, and put a certain limiter on the RED IS DEAD or the WIN mentality.
But of course these are just my experiences and thoughts, you can take it or leave it.