There hasn't been a blue answer what their aims are for Trapper of Foes.
This is the latest answer about Trapper of Foes I read.
"This is something we're still discussing in-house.
Traps are thematically interesting and have cool effects - but they tend to be rather mechanically clunky, requiring careful setup and teamwork to make effective use of in a group setting.
They can also be quite powerful solo where a lone player has a lot more control over the scenario, but they tend to be a very slow way to grind landscape.
We could certainly improve their role in either case, but regardless of which way we go, it tends to be a complex skill set to work with behind the scenes, so we have to have a plan for it that we're confident of before we commit to it, because it's going to be quite a bit of work to get it right. In the meantime we can probably squeeze in some additional upgrades to the basic stats of traps (dps, cooldowns, etc) to make them a bit more competitive over the next few months, until we get a chance to more seriously update the line.
-Vastin " (https://www.lotro.com/forums/showthr...75#post7839675)
Before they haven't chosen a direction our suggestion won't change much. There have been lots of them before.
To your suggestion: I think Trapper of Foes should get improved in its role. Support: CC and offensive debuffs. That's where it is lacking. Turning it into another dot based dps-class would be a loss.
Ceterum censeo Carthaginem esse delendam.
Trapper of Foes needs better tools to fulfill it's supporting(CC and offensive debuffs) and DoT role.