In my opinion, here is the bottom line:
Lets take Rollison for example. He's from Texas. His offer list isn't widely impressive, but he put up some good numbers, and I think he played 2A ball (I may be thinking of Mosley on this)? He's got some weight to put on to be able to withstand playing in the SEC, but that doesn't necessarily mean he's a bad QB either. It just means he needs a little more meat on his bones to take what he's going to get. If he can step in and shame every QB on the roster and light up SEC secondaries, then so be it. He's good. He may be the next coming of Jesus for all I know. But, one shouldn't think he's going to be a stud just because he's from TX and other QBs from Texas have been good. Just because he put up really good numbers at the HS level doesn't mean he will do it in the SEC. Look what happened to Kodi Burns. He was Mr. Everything his SR year. So far, he hasn't shown much, and that goes well beyond having a shitty OC for half the season.
There is usually a pretty good amount of talent that comes out of TX, but not everybody is. There is alot of good talent that comes out across the country for that matter. Not every single one of them turns out to be good at the college level, though. You don't really know if they're good or not until they play a little. Its easy enough to sit here and say this guy is or isn't good, but we honestly don't know. Everybody is entitled to their opinion as to how he will do. Its like I said before, it all comes down to the evaluation the coach makes. I would hope a coach wouldn't just take everything he can get out of TX blindly just because its TX. I see no problem with cherrypicking the talent out of a state though. You just better hope that "talent" translates to college "talent".