I think you are looking at this the wrong way... As for the website crashing on reservation day, they got millions of hits to their site, and frankly did not expect that, and were not prepared (no big deal) Tesla has also had their website crash during the model 3, Y, and Cybertruck unveiling. As for the Mach E comparison, Mach E did not have near the interest the HummerEV did, just look at click counts on online reviews (the only way to get high clicks on a Mach E video is do a Tesla Y comparison in the title or thumbnail) Mach E has also had its share of controversies and problems with last minute delays, and dealer gouging. Fords website did struggle on the Lightning unveil, which got far more interest than the Mach E, and on the Bronco, they crashed totally. Personally I did not like Ford's reservation system and had trouble logging in for the Lightning. I got errors and disconnected a few times and gave up.Hopefully, this doesn't come off wrong. I am excited about the Hummer EV and what's about to happen for a lot of us. I'm also happy with my Chevy Bolt (2nd one) even though it may catch on fire, lol.
What I'm kinda blown away about is how GM is keeping us all in the dark on our reservations. We picked up a Ford Mustang Mach-E earlier this year, and from the reservation phase, to the order phase was handled in a pretty transparent way. I could log into ford.com and see my reservation, what I put down during the reservation phase, options to cancel, then the same thing when it moved to an order. I had a dealership I picked and a sales rep assigned to me all displayed through their website during the entire process. I at least knew that Ford knew I had a reservation.
On the GM side of things, I see that they are moving to a centralized accounts.gm.com web portal. I applaud them for that, but I think they missed a key item in their site features, a reservations/orders section. It would be nice to at least check on it say once a month just as a warm fuzzy that it's still there. As we all know the rollout of the website launch for the Hummer reservations was a catastrophe. As a software engineer myself, I can't imagine the stress levels of their team when that didn't go off well. I think a reservation/order feature added to the current accounts.gm.com interface would kind of help heal customer skepticism in their ability to write software or deliver a good customer experience.
Instead of some clear information from gm, we're all on here trying to pick the brains of a few awesome folks with some inside knowledge as to what's going on. They could have and can still make this process better.
As for Communication, GM has been about as transparent and clear as any OEM I have seen on the Hummer Ev status. GM guided when they started taking Hummer Ev reservations that first deliveries would be in the fall of 2021, AFAIK that has not changed. GM has publicly reiterated this guidance in press release after press release, and has shown videos of their test program, and factory setup almost weekly.
As for GM's online accounts, you should write to them with suggestions, this is all new territory for GM and they are winging it a bit when it comes to this style of reservations system. Post on the GM twitter account, and they will reach out to you via DM for suggestions. I think GM can get better in this area, and the integration between the dealer, and Corporate could use improvement for sure. The way GM is doing it now is taking the reservations, then transferring it to the dealership along with our deposit.