Few people were repairing their Intel MacBooks, even if they were more serviceable. It's not really typical of Apple users to expect to have to open their devices (me included, and I've been using MacBooks since the PPC days)

It's not bad to want to pull apart and service your own laptop, but for me it's a tool to get a job done and if it breaks I'll send it to Apple to fix

My previous Intel Retina MBP lasted from 2012 to 2020, and now my dad uses it because it still works fine. My younger brother uses my ~2008 17" MacBook Pro (it only runs on wall power, though). Repairability has just never been much of a concern in my use of Apple stuff