Maybe when you're a junior, you like watching "the lights flash and the wheels spin" as Steve Summit used to say, but as you get older, more complexity is more stuff you have to audit, maintain, keep in your head as you extend the system, etc. And that's stuff you have less time and patience for. So you are drawn to solutions that are as simple as you can get away with. Especially since systems that did quite a lot with vastly fewer resources are still within your living memory. If you grew up with an Amiga, and your younger colleagues all started with like Windows XP or something, you remember being productive in an environment that they can't even fathom using.

I know this sounds all very "old man yells at cloud". What can I say. Grug dev only telling fireside stories learned from bitter experience chasing shiny rock.