Counterpoint: In lower weight divisions, it is harder to just stall and flop. You definitely see lighter guys who still work stalling top game, like Tanquinho, whose game I also loathe, but rarely are they so one-dimensional.
In HW, it's so comparatively advantageous to just lay on a guy that it makes it much more worthwhile to be a really heavy guy who does little except refuse to concede a TD or engage the guard and then hope for ref's decisions to go his way. Remember that Sanchez didn't exactly win with TDs; he didn't score a single TD point in his last three matches. He won by looking more active and stronger on his feet, which is a horrible way for fights to be decided. If anything, one might more accurately say he won with TD defense. Which is equivalent to winning judo matches by being a grip penalty specialist ... those guys actually exist btw.
Part of the problem is that BJJ doesn't call stalling enough while standing OR on the ground ... the lack of stalling calls continues to be my number one biggest gripe with BJJ rules. You end up with fights that are decided by faux activity, rather than either fighter ever being genuinely scared they might get hit with a penalty. This favors guys who develop games that look like they have the upper hand, and then they just lay n pray for a decision. It's as annoying in grappling as in MMA.
