Why are we doing Expert Roulette for the game's best gear?

[Zorafin]

Who said you had to do expert roulette only for tomestones?

I did. Right up in the post. See how I said it's the fastest way to get gear by a wide margin? It's roughly 2.5 tomes a minute, while anything else I can think of is closer to 1 tome a minute.
Mind, if you're doing a lot of things, then maybe you don't need to do expert roulette every day. But if the content you're doing isn't giving you tomes, then you're forced into expert. When I was leveling my classes all I had time for was expert. And that got old quick.

That isn't the best gear in the game either.

Also, you are not using the previous raids gear. You are using the storymode raids gear.

Is it not? If I'm not mistaken, the best players need tome gear to upgrade to 240 gear in some slots to be fully best in slot. And most players won't play through extreme raids, and that gear will be the only ones that will be upgraded, so yes. That's the best gear they can get.
And don't get pedantic with me. I'd have to double the size of the sentence to be grammatically correct, and even then you'd find something.