Yes, but let's forget about the fancy setup code for a minute.
With PWM it is far less than 10ms. Even the 2 pins without PWM are <10ms.
Oh wait you said 10 MICRO secs. Really? Are you sure?
It just works. I let it run for 3 hours.
There's nothing special about my LED's, but the Aroboto/Uno 5v reg seems indestructible driving 8 servos at once.
OK, why does my setup code not create the magic smoke after 800ms, nearly a second at 5v with no RES?
I agree that it should not work.
Which will go first, LED or Uno?
That question is for you.
I don't want to find out by experimenting anymore, if it's the latter.
Do you like how I made 2 fake PWM outputs that appear to work the same as the other 6?
If you're careful and use <2ms pulses, you can even drive a 10mw laser directly without a series RES.
I ran this all day.