Please grow the MMO part of the game. End game is lousy.

[Sigiria]

I can't speak for everyone else but like I said earlier, but I'm more so thinking about the potential future of the game. Players will tend to go with the most efficient way to deal with content, or the "meta" so to speak. If Trusts become the meta over real people, then yeah, it will be a massive hit towards multiplayer content.

If that's the case then it just mean there's indeed a large audience for that kind of solo option. If there's so many people that would rather deal with the trusts than other players then it just mean the multiplayer aspect of the game isn't what many people are looking for.
And quite frankly I don't see how it is a problem. You can still play with your friend or create a group to play the content with, you just deprive yourself of the incredible multiplayer experience consisting of saying "hi" at the start of an instance and "gg" at the end. Or having to deal with people that could screech at you if you dare not taking the game more seriously than your job when you're trying to do harder content and you couldn't align your real life schedule with 7 other of your friends.