A common argument I see is "Torghast is boring!", or "Torghast should drop more rewards!", even though those players are very conveniently forgetting recent history.
Blizzard have had a habit in recent expansions of taking their big thing, and whether players like it or not turning it into what they call a "build-around" feature. Don't like Islands? Don't like Garrisons? Don't like AP grinds? Don't like missions tables? Tough shit. You're doing them if you want to progress your character.
In Shadowlands, Blizzard have wisely backed-off on this philosophy. They've mandated that the currency for legendaries drops from Torghast, but beyond that they've been very fair about keeping it as an optional thing. Don't like it? Don't do it. Nobody is forcing you to do twisting corridors. You're not going to fall behind if you stop doing Torg every week once you have a fully-upgraded leggo. The choice is yours.
I'm saying this and to be honest, Torghast isn't really my cup of tea. I'm not big on roguelikes. I'm not a huge Diablo fan. But, I can see how for a certain crowd of people Torghast is right up their alley. It has a lot of replayability. My or your "Boring" might be someone else's very entertaining Sunday afternoon.
About bloody time they try something new and de-couple it from constant rewards. Don't like Torghast? Don't play Torghast. Love Torgast? Enjoy Torghast. It's not going anywhere.