Forget intimidation. Guitar picking is an art, not a competition sport. Further, no two artists are quite alike, even in the case of clones. What you bring to the table is unique. Nobody can do it like you do - not even Joe. Heck, imagine what we might be listening to today if Dylan or Hendrix let other singers intimidate them. Ozzy would rank at the very bottom of any "Top # Singers" list I would ever put together, but I sure do like listening to him and wish I could do it like he does. He can't even talk worth a crap and he still rules. Joe very probably did like what he heard when you were playing and that's the coolest part of the whole story.
Very very cool thing to say! Thanks for the perspective.