My wife has big Deity platform mountain pedals on her road bike (despite being an Atheist).
The one situation where they become problematic is off-road, where she gets pedal strikes. She has 165mm crank arms, but that isn't enough.
I was thinking of getting some smaller child-sized platforms, or small Spank Spoons, to see if that might help.
FWIW, I find it is easier to release from 2-bolt cleats than it is to pull my 5-10s free of the spikes on flat pedals. Also, spikes on flat pedals restrict float.