Do what you want and don't care what other people call it. You paid for the game so you can play how you want. If someone feels "griefed" by your actions then they can always find another session. If they stay then they've actively chosen to allow you to continue.
I wish R* made it easier for you to switch from a Public Session to a Friends, Crew, or Invite Only session. Instead you have to go back into Story Mode, THEN choose the new type of session you want.
Agreed, but I go to creator mode first and then switch to my preferred sessions, helps skip on the load times.