Endgame should be challenging - that's the point (from a casual player)

[Kaurhz]

Ghostcrawler, a developer from World of Warcraft put it best:
Most players will not actually rise to a steep challenge. They will, in fact, rather quit the game.
Sorry but there is nothing challenging about being crafter. Never has been.
It's just spend playtime to jump through overblown stat hoops.

ESPECIALLY in a time when we have resources like Teamcraft available to us.

And yes: I have done expert crafts for relics that don't work with macros and force manual play.

Perhaps not difficult, but it certainly wasn't really something you could just half-commit to, especially in the earlier part of the expansion, seeing as it asked for your attention in many facets of the game.

Alternatives to Teamcraft have existed for a very long-time, Before TC it was Lokyst and various forks..., Granted, they weren't pinpoint accuracy, but generally the amount of time you would stumble into issues with it was far and few between.

To be honest, I don't even know why you've mentioned experts, don't really care if you have done them, really. The abilities have been gutted so far that it's just not really the same, even if you want to argue "Overblown stat hoops".