Too many people don't realize the difference between an extreme one dimensional release being rewarded, and so called spraying the ball being rewarded. House shots score high because they allow guys with a super powerful release to get in a comfort zone. At the same time the heavy oil build up in the middle allows straighter players to get in a comfort zone. Nobody scores by routinely sending one ball wide, and roping another up the oil line. Maybe one big game, but it catches up to them.
What has really happened to bowling is that all our formats in tournaments are becoming shorter. You get 15 sprayers in the field, and one or two of them gets hot for a couple of games, but nobody notices the other guys who are all over the place backing up one big game with a very bad one.
I have been bowling scratch tournaments for 50 years. I have seen a handful of really poor bowlers win tournaments, but every one of them was able to get in a zone and repeat a lot more shots than they typically could make on a normal day. Some patterns reward a powerful release, some reward lefties, and some reward finesse players. No matter what style is rewarded, it is the guy who executes the best within his style who wins. I think the best thing about the modern resin balls is that they allow guys with styles that don't always match up to a pattern to be more competitive if they can execute. In the 80's I couldn't beat a cranker on the short oil patterns, no matter how good I threw the ball because their carry advantage was just too great. At the same time you couldn't beat a lefty if you were constantly moving toward 4th arrow and they could hang around 5 board all day.
I have built my game to be as versatile as possible on a variety of flatter patterns. It hurts me some on house shots because my roll pattern often doesn't carry well when I am forced to hook the lane too much. However, I can still compete with the wild power players on house shots, just not the real good power players.