It is my impression that there are a lot of coaches out there who are what I call "old school". They teach the way they were taught. So, there are probably a lot of coaches that still teach pulling the glove. I don't know this for a fact - it's just the impression I have. My exposure to other coaches comes primarily from youth travel ball but also from the high school level. I believe pulling the glove was thought to enhance shoulder rotation but now we know that shoulder rotation happens via hip rotation, hip and shoulder separation, and the stretch-shortening cycle of the core muscles.
There are some video clips floating around the Internet of Bill Thurston teaching mechanics. In one of the videos, he teaches tucking the glove. But I don't know if the video is outdated or if it represents what he currently teaches.
I'm not surprised.
I wouldn't say House's ideas were universally accepted then or now. In the 2nd edition of The Pithing Edge, House admits there were things in the first edition that were wrong. Also, I know there was a period when House was considered too scientific and that probably closed some people's minds to his ideas. Even today, there are many coaches who think their way is the only way.
One thing you should understand, however, is that House has a high speed video analysis system in his facility and he has done a lot of video analysis to come up with or confirm his ideas. On top of that, he (actually they - the NPA) has an advisory board that they run things by before they are published. So ideas coming from House and the NPA these days are pretty well-founded.