Admittedly, they can be very hard to catch when used correctly to hug corners
Hugging corners isn't something that only Mercs/Commandos can do, and in fact a lot of classes do it far better (Sages/Sorcs). A lot of times it is simply better to stand there and take the punishment than to risk allowing your opponents to use LoS against you, or worse, LoS your team's healers.
Overall a strange response that can only imply that the developers are keyboard turners if they find DPS Mercs/Commandos hard to catch
Anyway, good to know it's being looked into. Thanks as usual, Allison.