But this is a specific type of instant kill. It’s demonstrably different across the board, whereas ult generation and losing ultimates weren’t differentiated by anything more than an imbalance between hero designs. These aren’t comparable.
Regardless, I can’t really speak for other people. I make sure to specifically mention primary fire or low-CD abilities. Rein’s charge doesn’t fall under that category. I never asked for ‘all one-shot kills’ to be destroyed as your original post implies.