For sure... However I have to think that if a player would opt for the safe with the 6 in this spot, then they most likely don't have the ability/fore-sight to control where the 6 ends up after the safe. The BIH transistion from the 6 to the 7 is one thing. Ending up on the 7 to reach the 8 is another.I agree. But there's a difference between playing scared and holding out for a better opportunity.
Regardless if we speaking offensive or defensive 6 shot in this situation, the best place to end up on the 7 is for the E pocket. ...and with a shooting angle akin to what you'd gain with the offensive 2 rail play off the 6.
Again, I'm far from an "anti-safe" player, but this particular spot doesn't gain you anything other than uncertainty after the fact.