I would have preferred an easier method to the combat maneuvers than just ignoring them...
I like the AoO less rules in Cthulhu d20. Just taking them out, but leaving the 5ft step which has now no function is not so good.
Same as above.
Well I have to say as someone with a 11 year old son and 10 year old nephew to introduce to the game... I'm glad Paizo didn't tailor this set to your preferences... since, as I stated before, you aren't a beginner and aren't approaching it from the mindset of a new player.
On another note, as delericho stated... the 5ft step does serve a purpose on a tactical choice level.
Finally if you like the AoO rules from d20 Cthulhu... then just add them to the Beginner Box, it seems like it would be trivially easy and leans more towards your tastes, however I don't think including wrong AoO (as delericho pointed out) would do anything but confuse players.
I wanted to add the rules-light solution to my Pathfinder game...
I'm not even sure what this means... you wanted to add rules-light rules to the Pathfinder corebook rules? I would think that if you wanted a more rules-light game that you would start with the BB rules as a basis and add the rules from the core that you want... In fact this is very much what is being suggested on the Paizo boards, that people add in as much or as little as they want from the corebook when their players are ready for increased complexity.
The compatibility issues were one of the reasons I suggested more essential classes. With less option/level, it would have been easier to support higher level play (less powers which take room in the print product).
One issue...compatibility, has nothing to do with supporting a higher level of play. The classes in the red box were suppose to be essential classes, they just weren't, in certain aspects, the same as the essential classes they released in the "Hereos of" books.
I would further add it goes beyond just the initial product. Right now Paizo has released 2 PDF's with a barbarian BB class, new monsters, another adventure, more magic items, etc. for free. They released the hero minis for those who want to purchase them and finally to top it off they announced there will be a free character creator relelased by HeroLab for the Beginner Box. To me that's the type of push and support WotC should be issuing for their own red box.