Just so some people dont get confused I will say this about our M/T type Fits, we have a rev limiter too,
but....... it only works on the upshifts, not down shifts.
I think most everyone knows this already but I thought I would put it in for the ones who dont (or the ones who cant read their manual...haaahaa)
So in your case its all good for reasons already stated, but indeed I do find it odd that you were able to accidently hit them (I could hardly hit them properly when I test drove it and I was aiming for them

)
anywho I actually think its a bit safer to have them working in "D" mode as I have had many instances where my A/T in previous hondas bogged down in a turn and had no power comming out (cuz it engaged the wrong gear, too hight in those cases) and left me put....putting in front of not slow traffic. The paddles in "D" mode would have been helpful. Especially if I was not able to throttle modulate to keep or change the gear at the time.