I'm not sure how important the pole sleeve guys are for strength/stability. I have the equivalent older single person Laser Competition 1, although haven't used it for quite some time.
My understanding is that the pole sleeve's primary purpose is to make the tent fully waterproof, apparently not so without it fitted.
I haven't tested that claim in practice, always fitted and guyed the sleeve, which is a PITA in my experience. It's fiddly and seems to take longer than putting up the tent itself.
Otherwise it's a great ultralight tent for one if you're a short *&%$#! like me.
Similarly I bought the original Durston X-Mid 1, which I really like, but I've only used it for 2 nights.
Haven't done any overnighting in recent years due to various medical issues.
That said I've never had either tent in alpine conditions, heavy rain yes, and both perform well in my experience in that situation.
If it helps the discussion here is my Laser Comp set up at camp back in 2017 with the pole sleeve fitted and guyed.