All of that is true but the point is that it is overstated. Traversal is the biggest weakness. The gesture movement is clearly inferior to simply having a stick, offering less precise movement. Still, gesture based movement is comfortable and intuitive in it's own way. Teleport movement is not my preferred option (better than you may imagine having not tried it, tho) but it's viable. About that dedicated grip button, use the big trigger under your forefinger to grip. Yes, you are correct picking things up is pretty common in vr but I don't think this was ever a problem with the move.
There's a good chance that alyx will be too much for the move controllers. The movement in particular could be too demanding. But then again maybe not. Compared to touch or knuckles, then are a laugh, sure. However when you need them to be so bad that they're crippling other games I would caution others to consider a grain of salt.
I don't think it's overstated at all. To go back to my prior comparison, someone may claim people overstate the issues of a modern controller shipping with no analogue sticks saying that whilst dual analog would be superior, playing Halo with GoldenEye's control scheme isn't really that bad. I'd outright disagree with that.
As for using the trigger under your finger in place of a grip button... it's known as a trigger for a reason, because often the item you're looking to grip also is operated with a trigger.
I've had Rift + PSVR since around the PSVR's launch. I'm not overstating the issues, it really just is that bad at these tasks, and
does leads to design compromises (such as hands not being independently tracked, or "aiming with your face") for numerous games that require free movement whilst targeting PSVR from the outset.
The Move controllers are a control system that were designed with no concept of artificial motion, because their original purpose obvious wouldn't require that, but that's become a glaring flaw in it's new role.
EDIT: Actually the GoldenEye comparison is too lenient, because there's no dpad in this case either.