Having had the chance, and opportunity, to train with lifters who have competed in either IPF junior world championship in bench press or just IPF world championship in bench I can say that in Swedish powerlifting there seems to be a trend with very high volume bench press training. The trend, I think, is started based on the success of Josef Eriksson who has championed a much higher volume approach to bench training, 10x10 at around 60% of 1RM is suggested every other day in one of his programs for a couple of weeks, before a peak cycle.
This have given some lifters amazing gains in the bench press and given me the idea that maybe much higher timer under tension for bench is the way to go, I would also say that, based on experience, that the lower body does not seem to improve in the same way (for a lot of lifters) with the same volume. It is also true that it is much harder to program for both squat and deadlift and both the amount of absolute weight used and percentage muscle is quite different. I think we all know the upper body can take a lot of volume and still recover OK.
Jumpers jump. throwers throw and you know... pressers press.