I just don't see any functional advantage to e-shifting. Its still a deralleur system, which means the limiting factor on the speed of a shift is going to be a combination of cadence and the amount of torque being applied. If you are out of the saddle, pushing on the pedals as hard as you can at a cadence of 70, an upshift is going to be pretty slow, and e-shifting will make it no faster.

Automatic switching between chainrings to get sequential gearing? I don't want that. I'm lugging up a hill and decide to downshift and the e-shifter has to get to the small CR and up several cogs at the same time? Thank you no, I will get on the small CR right before I start the climb.

Shift buttons on the drops? I guess that would be nice to have an extra button to be able to shift while sprinting in the drops, but Shimano works pretty well right now on the drops.