Trophies should not be earned while admin rights are enabled. Yes, I accidentally got one when trying out things in singleplayer. It messes up the true progress meters.
Steps on how to reproduce issue:
Enable admin rights
Do something that would earn you a trophy (listed on ps4).
I agree that is not right and that you shouldn’t have trophies when you are in admin mode. But still it is not a bug, it is just the way game is. Bring this issue to suggestions and if you can, please make a vote for it.