For starters we're in the middle of a huge financial crisis, so releasing yet another VR set, a 3500 USD one at that, is hilarious. To further hammer in how terrible the timing of this is, we are also amid so many tech bro shit schemes failing. Cryptocurrency, NFTs, you name it. The Metaverse was a laughingstock, Twitter is imploding from Elons idiot decisions, Teslas are literally crashing and burning and all major tech companies have been on the News at some point for fucking with people's personal data and other con jobs. AI is scaring people as much as it is entertaining them. Confidence in emergent technology is at an all-time low. It doesn't help that the promo poster features the most dead-eyed soulless-looking person staring through it at you. People are sick of it. VR headsets were already niche, who cares if it has AR or whatever tacked on? Sure, some rich yuppies will buy it to impress their friends, but they buy anything the market tells them is the next big thing and are a small minority (again, more poor people than ever at the moment)
TLDR this is going to be Google Glass again but this time even more of a flop because now people are poorer and more skeptical of big tech than ever.
I will say that the Apple headset specs are super impressive, better than anything out there. 4156×3740 pixel display per eye, with a 1.4 inch diagonal, that's over 4000 PPI. Over 33 pixels per degree before any fancy lens tech is considered. Varjo is able to get 70 pixels per degree in the focus area with fancy lenses and eye tracking, Apple could do even better.
Lenses can only trade off PPD at different places in the FOV. The best lenses actually try to reduce distortion and keep PPD equal, which leads to the best performance and quality (having different PPD in different location requires distortion which requires supersampling to correct)
Eye tracking can't increase PPD either. It's purely something you do for performance when you already have a high PPD.