Yup. It takes hours and hours of effort to tune, tweak, and optimize your technique towards e-drumming, and to do the same for the sounds you are triggering. Which should come as no surprise, as it took most of us many years to tune and tweek our acoustic setups and chops.
E-drums are basically a whole new instrument. They move air differently (with respect to the onstage levels), they fall into a live mix much differently, they feel different and must be played with a different touch, in some ways. However, once the time has been invested to make them work, they can solve many problems that have always plagued acoustic drums (both live and in a studio setting). They also bring problems (particularly in reliability, and in monitoring) that are uniquely theirs. it's down to taste, and the blend with the sound of the group.
Some tunes in the studio setting will always call for an acoustic sound. Some may call for a combination, and some may work best with the direct outs from a drum module (witness the upsurge in people retriggering/replacing on acoustic tracks). It's just another tube of paint in the sonic palette...
The live environment is _never_ the place to be trying out new things on e-drums- or on keys, for that matter. You work out the moves in advance, rehearse, get the sounds right, and then take it out in public- at least to the point of having a bulletproof and good-sounding default patch to return to... Takes time, but that's also no different than the acoustic version.
I highly doubt that I will ever find myself playing live on acoustics again, although I do dearly love my old kit. The E-drums are too versatile, and too seductive, and I've now spent several years rebuilding my chops around them.
To each their own, of course- but IMNSHO, e-drums do have a great deal of merit, both studio and live...