Why can't Canon come up with a better way to attach the strap to it's DSLR cameras? You need to be a knitter to thread the damm thing in and out over through....
A simple dog collar carabiner type clip.
To answer your observation directly , a weak part of a camera is the lag for the strap.
Because it protrudes from the body if you make it large enough to take a clip on (carabiner) type arrangement it will be too easy to damage itself and or the body part it is screwed in/ fused on. (banging,rubbing)
As they are you need to insert a ring or triangle but that also ends up putting a lot of stress on the base of the lug and often it is just an ugly awkward solution ending up in something like this :
that could work perfectly well for some, not so much for others.