If the examiner is female my point is made.
Just kidding .
That is an exercise i do at the beginning of most trips just to warm up
and get the feel of the water and my boat with todays load.

As for my standards, as far as I am concerned : If you are upright,
breathing air and in the seat it was a successfull roll.
I don't care if there are a dozen attempts, three splash saves and
intervention from the Holy Gohst, a roll is successfull when you are
upright and in the boat.
The extended paddle ( pawata ) roll is one of my favourites to teach
people. It is successful almost every time even with poor form and
technique. Success builds success.
People successfull with this roll on their strong side will go off side
then do C to C 's Skulling , Screw , etc. some go on to do storm and
every other type of combat roll i can think of.

That said, outside of the close company I keep, most paddlers I see on
the water rent boats and have little idea of self rescue and few know
how to roll. Most of my paddling friends have good skill levels but
there are a lot of occasional paddlers out there and some solid skilled
paddlers that don't have a clue on how to roll.
Alex McGruer
..