Will they ever stop with constant Vertical Progression?

[Ibi]

I see 1, 4 and 5 as cons.

If you see those as cons, that seems to imply:

1. You prefer that your character not get stronger over time.
4. You prefer that you're still incentivized to run content you've already completed dozens of times.
5. You prefer that the rewards from new content not be superior, meaning there may be no reward-based incentive to run it.

Different strokes for different folks, I guess, but I'd concur with Fyce that this seems like a weird game to choose to play if that's the case.