These perhaps subtle points are not evident to most owners until after they purchase, but people keep buying Tesla with the service and practices they are delivering, so IMHO as long as Tesla sells enough new product to move forward, and as long as there is no significant negative press, it reinforces to Elon and Tesla all is well with a majority.
Tesla unlike most more mature auto mfgrs, does not seem to have advisory councils and participate in JD Edwards surveys (or something similar across brands) as it relates to customer sat. Some owners like myself (and perhaps yourself) believe Tesla has room for improvement which IMHO would likely serve the brand well with both some number of current and future owners. Others as you've seen in their replies are accepting and defend Tesla's present ways. I don't get into the food fights with those folks any more. To me, "It is what it is". I don't believe Tesla is being nefarious, but I also don't believe Tesla's aperture has yet opened to change on things like better Release Notes, so I just move on and accept it as the way it is today. Thank goodness for a couple of Tesla forums like TMC that help somewhat fill in the gaps for me. As to how much these little frustrations add up, influencing my future purchase decisions when it comes time to replace my MS, or my own recommendations to others looking at purchasing a BEV in the meantime, I can't be sure.