Glasscannon affix is great but for PvP, if your warrior torrent build has a lot of HP, maybe not such a good idea. If it's for playing against high floor maps, definitely worth it as in high floors, HP doesn't matter as the enemies will one shot you no matter what and to get insane HP in PvE, you would need huge amount of slots dedicated and not much room for DPS which matters most.
Also high hit frequency in PvE at high floors matters, especially at floors where you need crushing blow as they have HP that is more than your DPS could get to.
Explosive is a nice affix too for maps. Definitely worth a try. You can get many spike damage with it .
Do you use the frozen set for high damage after frozen enemies die and explode or some other way. Maybe you also use arcanist and Ascendant to really increase dmg.
If it's glasscannon vs Explosive, glasscannon because it directly makes all DMG deal 50% more. Sometimes you have high though if you like.