Good to see this out. I want to pick a good frontend scheme for future projects but I don't really need most of the fancy SPAs and the complexity coming with it. Invested a few weeks on Vue a few months back, then the concern about 'React has 80% market share and you can find React developer much more easily in the west" never went away. Maybe Mithril is the way out? I just need a really light-weight client-side-ajax…
So you suggest switching from one of the Big 3 to Mithril because you are concerned about market share, while Mithril probably has magnitudes less market share?
if I pick less known but easier-to-learn-got-job-done option I expect to invest less efforts, thus market-share is less critical for the concerns.