Well that’s fascinating… they’re clearly made by different tools, but I have to agree, that bump looks basically identical. 
Can confirm. Almost damaged a switch because I didn’t notice this until I was about to put the top housing back on.
This bears-out in my testing so far; once the rattly lightweight spring and iffy stem are out of there (or once the spring is drowning in lube), the loose-ish leaf doesn’t seem to make too much sound.
Edit: sound test of Holy Dragons with ABS MT3 caps on.