The "gotcha" for this strategy is it will eat up your time clock and GBE.
Each smoke is 13 seconds. You repeat this 3 times and you are looking at a good minute that you have eaten up ... (the time to land Everspark, flare to the desired location, get her there, and then however many times you use the universal remote)
Of course there is also the GBE usage to accomplish this along with saving GBE for the rest of your troops if needed.
It is cool though and I have played with Everspark on PVP for beached defenses just to make the main troop landing a little easier. Not sure if it pays off though as that GBE typically would have been used to take out RLs, SLs, BCs, etc prior to landing the troops.
The jury is still out on Universal Remote for me.
Oops Sol ... never thought of the critter idea! Awesome, awesome tip!