Tesla is in the business of making money - not the right thing
If they did the right thing, the issues with all the service centers wouldn't exist; there would be loaners for people dropping off vehicles, and whatnot. But, the bottom line is the bottom line (money) and replacing or "doing the right thing" is usually not financially sound. Hence the removal of free supercharging, the cost cuts on materials, quality control, and so on...
I would generally agree to the spirit of what you're saying, but disagree with what you actually said.
1) I'm not even sure if Musk believes they are in the business of making money, rather they are in the business of revolutionizing a historically monopolistic/oligarchy industry between oil/energy, autos, and utilities. He seems to be more motivated by the figures of success such as deliveries, product announcements/hype, global expansion, brand prestige, growing the marketshare of EVs, etc. Notice he's not afraid to say the stock price is overpriced, but he hints he's undervalued 3-5 years out.
2) Doing the right thing often times makes smart business and dollar sense. Often times it is very expensive to do the wrong thing when you factor in the loss of goodwill, brand prestige, litigation cost, investigations, recalls, etc. OTA revisions were generally thought to be a game-changer in the cost of recalls and updates. With respect to the topic at hand, "throttled Supercharging," it is too early to know if this was the dollar smart thing to do because we simply don't have enough information currently.
3) I would agree that doing the right thing would be to fix the issues at both the Service Centers AND fix the production process so repairs are reliant on the Service Centers to fix post-deliveries (I think management is too focused on deliveries and not the quality of the units delivered...imagine a fine-dining restaurant with a chef sending out plates that aren't acceptable, the customer gets annoyed, the wait-staff has to do 4X more work, all the cooks and dishwashers have to do double, and the owner loses on material cost for every re-fire).
I disagree that loaners not being available would qualify as a "not the right thing," unless it was previously stated that a loaner would be made available, but then again I'm within jogging distance to my Service Center and have other vehicles to drive. Finally removal of free Supercharging falls into the same category unless they removed it without mutual consent. I thought they did the right thing by not focusing on making money through the Supercharging revenue, but to focus on the expansion and maintenance of the infrastructure.
So there you have it, my opinion, which agrees with the spirit of what you said but in a nit-picky kind of way...I hope you don't mind
Post Script: I read your follow-up response and completely agree that Tesla saying "it's normal" when it absolutely is not the way it was intended to operate or outside the "fleet of owners" is very wrong and shameful. I would also prefer Tesla to stop fighting the "right to repair" and not try to stymie 3rd party support. Their Service Centers aren't cutting it...it's time to get out of the way.