The more you write SPAs, the easier it is to set up the next one... This whole "but SPAs are bad!" tirade a lot of people have been going on since a couple years ago stinks of people being nervous about their job security.
It's a perfectly valid point to make: splitting everything up into SPAs, micro services, etc, instead of solving the business problem with a monolith is indeed the wrong way to go, and Martin makes some sensible arguments around this topic.
It's the same in video games: you create a prototype using cubes and texture-less blobs to test the "business logic" (mechanics) first before you produce a AAA model and 700 animations.
