Cost-cutting had to come somewhere with Canon MILCs.
It's pretty well-known that Canon DSLRs from the 7D upward are practically indistructable (maybe 6D is the exception but I've never heard a 6D failing in the shutter mechanism).
Ths also brings up a good point: 7D, 5D and of course 1D are heavy cameras. That's because the shutter mechanisms on these models are built tougher than most other cameras, and of course the bodies are mainly magnisium alloy. You can read about it here:
https://www.imaging-resource.com/PRODS/canon-7d-mark-ii/canon-7d-mark-iiA.HTM
So maybe there are still good reasons to own a 7D or 7DM2 (I re-bought a 7DM2 just a few months ago. Can't subsitute everything with Canon MILCs. At least not with my R8).