Fanaelialae
Legend
The rogue still has to follow all the normal rules to become Hidden, so given enough guards, one of them would be able to see him directly. However, you would remove a major class ability (Rogue 11: all skilled rolls below 10 become 10) in order to force an arbitrary 5% chance of failure? I have to wonder if you'd do the same for other classes, or if you just have a hate for the Rogue.
Yup, you got me. I hate rogues. It's why one of the favorite characters I've played in 5e was a rogue. It's why one of my players favorite characters in 5e was also a rogue. You are so clever, having seen through my brilliant ruse to the hate that lies beneath! I never thought you'd figure it out seeing as failure on a 1 leaves reliable talent just working dandy on a 2-9, and i can totally see how that is the same as removing the ability in its entirety. Well done!
For the record, despite the sight lines of 100 guards, I'd let the rogue try, because he's that good. Plus when he inevitably rolls that 1, he'll be swarmed by guards and die for sure. Cause, yup, I definitely hate them rogues!