I like deception as it is, it was meant for DPS in PvE enviroment and they are doing fine as it is. I 1st notice my dps was on par or slightly above other classes when I was doing KP 4th boss Fabricator, previously I was assign as the puzzle solver and therefore I don't get to dps, but then we refine the strat by having me dps on every flame flush phase and then pull up to the platform by a socc to continue solving the puzzle.
When we 1st do it without me dpsing my team always only manage to get the fabricator from 100% to 80%-78% and since I started dpsing we always have it to 70% on the 1st flush. This basically shows that my deception spec alone has been doing 8%-10% dps alone. Other Dps in my ops is a meccenary, a dps powertech and a dps jugg. They are also close to fully rakata geared and experience player which know their class.
If you are gonna play decep in a PvP enviroment do expect to be squishy and your role will be very limited to the team play. However decep is still pretty viable in PvP if you are a skill players.