Welcome to your the enchanters world where disenchanted materials come from lfd.
Not really. The presence of an enchanter is still required for those materials, and I for one (on an alt) have had a fair amount of success over the months using the auction house for disenchant fodder.
Regardless, the basic principle is that an enchanter will get many more materials for her crafts than a non-enchanter. This is logical for professions without a dedicated gathering partner (like mining->blacksmithing), but it is violated here.
Its amazing the qq this generates while completing ignoring that for much of wotlk the gap between tailoring and the other professions was quite a bit larger, But because it was a proc and you needed a calculator to do the maths it was ignored. Let alone the leatherworking from 4.0 till the new bracer enchants was added was superior to all the other static buffs.
For me, it's not a huge deal. For tip-top progression raiders, it is. It's a different style, but it is just as problematic for them as it isn't for me. Aesthetically, it's a shame that a very fine balance prior to this patch has been broken.
The main issue with pvp gems is because of the nature of pvp. Any method of introducing epic gems via pvp in the past has by default immediately become the easiest method to obtain gems. They can give the via conquest points. (easy to aqquire).
IF we take GC at his word and it will take all expansion for the average raider to aqquire enough gems via geodes to completely gear himself I can't see how this is not making an mountain out of a molehill.
First, since they're capped, conquest points are intrinsically not easy to acquire. A hypothetical price of 4k conquest/gem means that no PvPer will receive more than 1 gem per couple weeks.
Second, my main point is what you've neglected here. To be the best at her game, a PvPer is now required to raid. This is the 'forcing PvPers to raid' that Blizzard expressly does not want to do. It's not a good thing for anybody.