That's not my experience. I don't yank my power cable and after replacing 2 of them I now wrap up the cable leaving a 4 inch loop of cable coming out of the ada

That's not my experience. I don't yank my power cable and after replacing 2 of them I now wrap up the cable leaving a 4 inch loop of cable coming out of the adapter. So there's no 90 degree twist where the wire comes out of the adapter. Unfortunately there's still often a 90 degree turn where it connects to my MBP. I've found no reliable way to prevent that.