I take the opposite side of that bet. Always bet on (more) Javascript. Dealing with HTML sucks, and we want as little of it as possible, otherwise we would not

I take the opposite side of that bet. Always bet on (more) Javascript. Dealing with HTML sucks, and we want as little of it as possible, otherwise we would not have invented generations of frameworks to make it manageable. The lasting success of React shows that we have converged on how to do that. Moving back to MPAs is always something that bored engineers want to do. Users generally do not care. Moreover, REST APIs - and I mean the simple ones people actually want to use, none of that HATEOAS BS - are ubiquitous for all sorts of interactions between web and nonweb clients. Are you going to ship an MPA as your mobile apps, or are you going to just use REST plus whatever clients make sense? It also makes a lot of sense in terms of organization. Your backend developers probably suck at design, your frontend developers suck at databases.