People who think speed running doesn't take skill are automatically bad.
It's not about pulling a certain amount of mobs or getting through in X amount of time, its about improving oneself and the synergy of ones group to beat it faster than the last time you did it, with whatever gear you have currently (and planning the improvement of that gear). Even if you gate all the packs, and force CC, you can still clear faster by working on improving your methods, your rotation, your group, your gear. So nothing SE will do will stop many of us from trying to clear as quickly and effectively as possible regardless of who we go with.

So yeah we beat brayflox first 2 bosses in 4 minutes 30 seconds this time, what about 4 minutes 25 seconds next time?
every skill you use, the path you take , the timing of abilities that synergize with other members can be improved to reduce that time.

Its practice, and working towards improving yourself. You can even do it in pugs, by thinking what can you do to reduce the time with whatever random team members you get with whatever random skill/gear levels they have. (and to do this without causing wipes, or having a tolerable risk level)

If you aren't trying to push yourself, the game has literately zero challenge, you make the challenge by doing it as fast as you can.

But I guess some people are ok with half afk no challenge ezmode giv loot please. To me you couldn't be lazier.