No.
I do not play 4E. However, if they left FR more or less "as is" and continued publishing regional sourcebooks and such, I would have gladly bought them, just as I'm buying 1e and 2e FR books to this day. Unfortunately, they chose to completely mutilate the setting to make it more appealing to those who didn't like it in the first place. I am very happy that those people now like it, but it's no longer something I'm interested in.
BTW, I've been running (very) successful FR games for years. A lot of important NPCs have appeared in my games over the years - as information providers, background characters, and such. I never let any of them handle the job which the PCs had to do, and the reason for their absence (if anyone asked) was always logical; they had other threats to deal with.
I really don't know why anyone feels that a wealth of information on locales and people is constraining. I've always used all that stuff on a case-by-case basis, adding and subtracting as needed.
The only thing I had a problem with was the ever-changing metaplot, for which the novel writers are to blame. But it was very easy to ignore.