Gotcha. That one did do significantly better.
It's interesting to compare that machine to today's. 5.6lbs vs today's 16" at 4.3lbs. 2012 is 0.93" thick and today's is 0.64". I suppose, based on this datapoint, we can say there is something like a ~25% mechanical overhead for "repairability" then.
"MacBook Pro 15" Unibody Mid 2012 Repairability Score: 7 out of 10 (10 is easiest to repair)."
https://www.ifixit.com/Teardown/MacBook+Pro+15-Inch+Unibody+...