Seriously WK, the concept to take away prereqs to allow current PCs to take the feats without changing stats probably never entered their minds.
Honestly? That seems a bit hyperbolic. They
never said, while designing the feat with something like 21 DEX and say ... 17 WIS "hey, would anyone even take this?"
They likely never heard a
single person talk about how you need to figure out every stat dependent feat you want before hand when you intially build your character and plan your stat bumps accordingly.
You had to have an epiphany for it to enter your mind.
That epiphany involved me playing the game instead of just talking about it. When I sat down to play the game I remembered that, your stats, which you can't retrain, determines what feats you are allowed to have. It wasn't so much an epiphany as something I wasn't thinking about as I wasn't building a character/levelling a character at the time.
I do not think they are making game mechanics decisions to placate players of current PCs. Instead, I think they just screwed up and did not follow their original design guidelines.
The original design guidelines that themselves had a number of screw ups like the stealth rules, skill challenges, Non AC defenses that required feat patching, attack progression tha required feat patching, and controllers that didn't know what controllers were?
I write software for a living and I see it all of the time. People write code that works, but it doesn't follow the original design goals and eventually the code gets harder to maintain because not every person working on a project does the extra due diligence required to do it correctly (BRV is a prime example where minions were never considered when those rules were written). Good enough really is good enough for most people in their jobs. Why would WotC designers be any different than a significant percentage of other employees in other fields? I wouldn't be surprised if some of these new "features" aren't errataed in the future. PHB II is not even on the shelves yet and people are finding other questionable design decisions within it, not just feat prereq ones.
Of course by 'correctly' you mean, the way the original design was done. However when the original design in this case was buggy and incomplete, it's hard to say that the PHB achieved the design goals. While it's possible that things like this are examples of something slipping through the cracks, it's
also possible that this is something closer to the original design goals than the rest.
Or it actually is good enough, and they won't bother errata'ing bow mastery
or the other mastery's because it isn't an issue so great as to cause problems of imbalance or disrupting the design goals of the game.
There may be mistakes elsewhere (the fact that they didn't avoid issues like khopesh's doubling up on expertise is a glaing one) but that doesn't necessarily mean that bow mastery is one of them.