Two things - First, devs rarely come here, you might want to throw it in the suggestion box:
Second, and this is admittedly only from a PvP perspective - I kinda like sticky grenade the way it is. If it was cleansable, you wouldn't be able to use it on operatives as vanish prevention. I use sticky grenade plenty, as well as plasma grenade and stockstrike.
Explosive round has some use for Assault spec in 2.0 as it procs a burn, but I'd like to see something added to it for gunnery where it is still useless. I've suggested a few times that it proc an 'uninterruptability' buff for a few seconds.