Yeah, the fact that aftermarket mods are basically necessary to actually fully make use of Quest 2 is what leads to me think that this is not a fully-formed product yet.
For example Quest 2 while usable while wearing glasses, is deeply unpleasant. If you're a glasses wearer a set of prescription inserts is practically required. Likewise for comfort aftermarket straps are a must.
I get why FB isn't including these things out of the box (or has first-party consideration for it) but it overall makes the whole thing feel like a deeply unfinished product.