Things we needed: a new set to deal condi damage. Maybe some resolution or resistance for support. Would need protection to compete with overshield so we can keep up prot if meant for healing. Slow is nice.
What we got: negative damage. small AoE's. More barrier (signet, mech, mace, bulwark). More healing(elixir gun, mortar kit, heal kit). More might(blast gyro, barrier burst, Explosive Knuckle, HGH). More Vulnerability (any explosive and honestly never look at it because its always at 25 so whatever other sources we have). More Weakness.(elixir gun). More Cripple (any explosive, elixir gun, pistol, bombkit). More Blind(pistol, bombkit, mortar kit).... all useless as we have more than enough of basically all of the above.
Skill 5 is the only one that's not complete garbage, because at least it gives access to slow and an ethereal field. Two things we could actually use. However, it should also give confusion.
The rest of the skills are just bad. Lose protection uptime to gain basically nothing.