Seems to me that the discussion is getting a bit off-beam, I'm afraid.
To my mind, there are two completely separate questions being debated. One is, "how can LL make premium membership more attractive to residents?" The answer to that may be "By offering them an enhanced level of support" along with a load of matters completely unrelated to support, such as "By allowing them to use mega prims and letting them belong to more than 25 groups."
The question here, though, or so it seem to me, is "Will reducing the (pretty minimal) level of support basic accounts currently receive do anything to improve the (almost as minimal) level of support people paying several hundred USD a month receive?"
I remain to be convinced it will, since I find it hard to believe that the main reason Concierge support has nose-dived over the last few months, with tickets remaining unopened for weeks on end, when previously they were dealt with very rapidly, is that LL's support team have suddenly found themselves too busy helping basic accounts to offer Concierge customers the level of support we enjoyed until recently.