Yes, right - the system IS better than it was before. Which does not mean that pointing out certain things is useless, right?
The OCR, its height and why it is that high is a very different topic (in my case, it was raised from 2 to 28 due to a supposed bug - and then only lowered to 15. ... altogether different issue and OT)
It is a flaw, but there is no way of designing a perfectly intelligent npc system that responds properly in every situation. We don't have access to that sort of AI. (in fact that sort of AI doesn't exist)
What we do have, is a system that functions as a "Do not ignore these npc's or you will get your head caved in." It generalizes all of the reasons an npc guard would want to cave your skull in, into a handy-dandy stat called OCR. If you want to rp out a specific scenario with an npc that goes beyond that, then you ask a DM to possess them. The devs could make a system of 10,000 variables that stored every possible way that people can piss off the natives enough to cause them to want to kill you, but that's not practical, in my opinion. I feel like that system we have works pretty well. It's not 100% perfect, but it gets the job done without actively setting the server on fire, so I give it a thumbs up.
The only way to get perfect NPC behavior, would be to completely remove the npc's from the server and have a player stand in for them 24 hours a day. Clearly that's not doable, so we make do with what we have.
Pointing out flaws in a system isn't useless, but I think that everyone is pretty well acquainted with the shortcomings of the system. If all you're doing is pointing out flaws without offering up any realistic solutions, then its not really useful feedback anymore, is it?
Back to the OP, the reason why I don't see antagonize working, is that the lady's rest is within shouting distance of vallaki. If you try to intimidate Radu that you'll grind his bones to make your bread, then he would probably just shout for the guards and get ready to fend you off till they arrived. (or more likely he'd step inside and bar the door till the guards got there) If you want to do something like that, you're perfectly welcome to, just get a DM to possess radu for you so that he can respond properly to the situation. That is one of the server rules. If you want to browbeat Radu, you can, just get a DM. If you want to run through vallaki during the day eating every barovian child you can catch while the guards track you down, you can, just get a DM first.