Theres almost nothing of substance about BB anymore. The only reason its played is because Muh Popular when strife is the superior BB based gamemode - team based, engaging, more than one threat, removal of classes and all the stuff that makes a gamemode different from the same old same old.
Theoretically the server browser would be improved if Boss Battles droped off the face of the earth like CityRP and MedRP did before it to free up real estate for better gamemodes, removing the constant pit that it creates around it - 1-6 pop servers and stuff like that with no way of gaining players