Someone in the forum said that he put some hot glue on his new mainboard after that happened to him. Maybe you can ask him how that worked for him.
I would surely not call this a “predetermined braking point” because (hopefully) nobody said: “Hey, let’s not fix the USB connector to the mainboard at all. That way, it’ll break more often and we can sell many mainboards”.
You know of these electronic devices that break just after the warranty period is over? With built in features that the phone breaks earlier?
Fairphone discovered the badly designed USB connector only after producing the phone and it being used in long-term.
I hope you can find someone to help you fix your phone! And I would also like to mention that this could happen to you with a Samsung phone as well.