For my Feedback on the passive perception checks.

The main issue is an UI one. I don't know what I have just discover (I'm not able to see it, really) - Make an entry in the log, make a zoom animation, paint it in yellow.

For the debate I'm okay to see the failed test - You could have your party splitted and want to make your budy come to make their roll. It is not realistic at all, but that most of rollplayer do hehe

Thank you !