BC can be used effectively in PvE. I use it a lot in Khitomer Space Elite. When I destroy the second nanite generator which spawns a cube, I will immediately cloak, line up with the cube, and buff up for an alpha strike. If things go wrong, I'll cloak again and repeat. The reason I posted this topic is because BC is flawed where torpedos still hit you after cloaking, which is completely stupid. This isn't too much of an issue in PvP because player torpedos do not do 15k damage on average like Borg torpedos do.
As I've found out, BoP's pretty much seem only useful in PvP. They require too much defense optimization to the point where they're sacrificing firepower to be survivable in PvE.