So let me get this straight, you hate the guy so much, that his rather logical call for either implementation or removal of a bug (Tested multiple times by developers, working with the code, that this interaction cannot function without the bug between queueing a delayed crouch release), is somehow not needed or beginning to make strawman arguments about, who struggles with it ?
It gives Mercy the ability to get to high ground or out of peoples reach without a teammate to get her there (on that height), that is unintentional added survival and needs to be implemented properly or removed, simple.