Great article, this is exactly the type of thing I love.
Sure, Hammer hates your treachery. But get over it.
Roots is great and as you say:
Instead, I looked around at (oh. so. many) static site generators and played around with a few and found that I really liked the way that Roots works. It isn't the fastest, it may not be the most fully featured or flexible, but these things are a matter of choice and Roots was what felt right for me.
The JAMStack, micro-services architecture is alive and well here. Any particular service can be exchanged for any other, depending on what feels right to you. No lock in.