If the vibration still meets the requirements, then yes. They're not going to chase arbitrary ideas of "better". In the physical world, you add some margin to t

If the vibration still meets the requirements, then yes. They're not going to chase arbitrary ideas of "better". In the physical world, you add some margin to the design so you can tolerate stuff like this. They can see the physical buttons because they don't refresh and momentarily disappear like a digital display.