I am unaware of another risk being created. It is only in your mind.So you've eliminated one perceived risk and replaced it with another.
Again I repeat that no competent person stresses terminations in the way you describe and thus we return to the issue of incompetence. An incompetent person might drive a plate screw through insulation. An incompetent person might leave basic insulation chaffing against unprotected metal entry to a box. An incompetent person might partake in all manner of problematic or potentially dangerous actions and no amount of 4mm cable or lever connectors will change that.
You keep going around in circles unable to get a point. Again for you, I have come across many cables that have popped out of socket terminals because stress was put on them when the socket was pushed in, and installed by 'competent' professionals. It 'will' happen by the nature of the limited space environment. That is obvious. I have seen many scorched as well. I have seen many screwed terminals work loose as well. They cause fires. You think this is not an issue. It is!
Then you carp on about competence, like an old plumber unable to do his lead wiped joints any more as the world as moved on to copper.