Which, since it’s a positive number, is probably dBSPL. I don’t speak dBSPL (Sound Pressure Level) very well, but I assume it’s really quiet.
So you win.
This can still go into the dirt. All Mastering 4 does is make you pass ACX Technical Conformance. After you pass that, you have to pass Human Quality Control. That’s where you die if you can’t read out loud or have other theatrical problems.