I don't enjoy clearing AK trash 60 times while I farm up my tokens. I can literally heal through them while watching a video in my second monitor by this point.

I do enjoy killing AK bosses. I've done it 30 times and they're all still fun fights to heal. Heck I don't even mind teaching first-timers how to speedrun and how to kill the AK bosses, I do it all the time even if it means we'll wipe a few times while learning or spend just as long in the dungeon as a full clear. I'm not one of those people who will ditch/berate a party for queuing up in the duty finder without knowing the fights, because if I want a perfect 15 minute clear I'll form a premade instead. But clearing the trash is just not very fun for me at this point, not after I've run the dungeon so many times.

I receive absolutely nothing from the game for slogging through the part I don't enjoy (the trash) to get to the parts I do like (the bosses) except a larger repair bill. If the mobs dropped some gil so that you actually came out ahead by killing trash instead of with a massive loss, or if tokens were spread out such that more tomes could be obtained by clearing both the trash and the bosses, then I'd consider doing full clears. But otherwise, I (and most of the level 50 playerbase) will continue doing what is more efficient (and for many, more enjoyable).