You were speaking for me with most of your thoughts about the choice of methods, at least in your initial search and research!
I will never be very fast, whatever I do. Enjoyment is more important to me, and that means less algorithms to learn and, importantly, less algorithms for my old fingers to have to practise repeatedly to get them into muscle memory. Roux block building was daunting at first, but soon it became more and more natural to do (without memorising anything). I love it, i.e. some kind of active solving of the problem using my head (vs doing everything from memorised algorithms that can be done automatically after
countess practise hours). Time is NOT on my side!
Getting motivated to continue to cube (and getting some mind and physical exercise) is more important to me than the best possible speed, although I will still try but not as the main priority to get faster, with a method that I enjoy. Your analysis of the requirements of the 2 most popular methods and your approach to selection were very similar, even though I had a go at Beginner CFOP and 4LLL before I decided to switch to Roux.
I used Sian's 4-part tutorial. Then, I continued to learn the Basic Roux and after the CMLL, I started to learn LSE, but then I asked myself, why I should continue to learn it, since I found I was not enjoying these parts after the block building. I left Roux. I made up my own hybrid and simplified method, which need only about 9 easy, short algorithms (and lots of Sunes). I decided I should limit my goal and I just want to be able to solve the cube within a minute. I found that it is quite achievable even though my TPS was about 0.8, with my slow fingers and long recognition times. I wanted to be able to pick the low hanging fruit and enjoy myself on the way by making the journey easier, before aiming higher. I may come back to the proper Roux if I can get better, but that's a big IF at this time.