You can spend all the time you want trying to figure out what happen but my wife and I have moved on from this issue in 2013 but let me give you a clue. There are also income limits, varying with the number of dependents, for Group 8 co-pays as well.
Annual Income Limits For VA Benefits
You're original statement about VA dental care was "...I don't believe dental care is covered at all..." when now you're claiming "it's quite restrictive, just as I thought". You're being duplicitous by claiming one thing previously and now claiming something different, all the while acting like you had it right from the start, which you didn't. So who's pissing on who?
Have a good day.