Ko.Fe.
Lenses 35/21 Gears 46/20
Just as much as any film loading is anachronism.There's a counter argument for each of those points:
1) Hexar RF/Bessa R show that a back door is no obstacle
2) Pressure plate decides flatness
3) Nikon F redefined ruggedness
4) In return you get a repair nightmare because there's no easy access to the camera internals
Bottom loading is an anachronism at best (said as an owner of an M4)
Bessa R was based on economy Cosina SLR platform which was in use for several brands.
Including cheap Nikon SLRs. SLRs are for convenience. Door is a must.
Nikon F is the quarry tractor. Why shouldn't it be rugged.
Obviously, you haven't repaired any bottom loading camera.