Ah, I never watched TOS much, I had some vague, and obviousoy wrong, memory aeound Picard's and Woef's involvement leading to a treaty between the Federation and the Klingons.
Agree on the denial part, especially the authors. It shows in little stuff, like episodes in which Starfleet would extradite one of their officers to a nation they are at war with, no thought about any other function than officers...
I still love it, especially DS9. But there are some aspects that just rubb me the wrong way now that didn't bother me back the day.