I largely agree with two thirds of your post. I spent a lot of time on a London bus forum some time ago arguing vociferously for an increase in London's bus flat fare then, with annual increases thereafter, which by now would have seen it at the £2.30 to £2.40 level. To mitigate this I was proposing a cap at three fares per day, but with Hopper fare totally abandoned. I always opposed the Hopper fare, as I could foresaw the problems it would probably cause, with unnecessary disputes about times spent transferring to other buses, etc. It also gave TfL carte blanche to shorten routes both unnecessarily and unnaturally e.g. short of major traffic objectives, the 3 and 53 being very obvious examples. I had no support whatever for any of my proposals on the forum, but that was at a time when Sadiq Khan was being given the benefit of the doubt on his effectiveness.
I also expressed my disdain for the notion that scheduled short workings, except in very limited circumstances, couldn't be understood by the travelling public, given that London had been the short working capital of the world in bus terms for decades past. You'd probably disagree if I were to propose the idea that London in fact possibly gave this idea to the rest of the country! In fact, I'd go so far as to say if short working journeys are not introduced posthaste the system will go into an inexorable decline. Unfortunately the current tendering system will make it very hard to produce meaningful change though.
My comment about ' iconic' routes was meant to provoke a reaction, and I'm glad it has, both for and against. I'm not in the least suggesting it's the be-all-and-end-all, but this is a transport forum and I'm entitled to feel the way I do and to express it. The proposals show a deliberately cavalier and provocative disregard for the travelling habits of many habitual bus passengers imo, most of whom probably care little about the buses themselves and a fair few of whom probably loathe travelling by bus, but have no choice. If the no. 11 down the Kings Road is replaced by a single deck 507 with limited seating and strange boarding etiquette unique to that route, that will only alienate a proportion of the clientele, but maybe that's the intention. Incidentally, talking of Kings Road and Sloane Square, the previous bus every three or four minutes to Piccadilly Circus on the combined 19 and 22 of only a very few years ago will decline (and fall) to no service whatever.