None of my lvl 50 Blasters use their t1 or t2 on cooldown. Only as a filler when everything else is down. When safe to be in melee my Energy/Energy Blaster uses Sniper Blast, Total Focus, Energy Punch, Bone Smasher, once in a while Power Burst and once in a REALLY long while, Power Bolt.
So yes, I USE t1 or t2, but not on cooldown, making them poor choices for proccing.