thats bound to produce inconsistencies. The point of the step sequencer is to plot out a predictable sound in advance. What happens if you accidentally hit it too soft? If you want variation, play it by hand. Best of both worlds.
Haha > "What happens if you accidentally hit it too soft?". Ok, well what happens when you're playing by hand and you hit it too soft? Same answer. You play a soft note. But in the sequencer you can edit it to whatever velocity you want.
I'm not saying they should do away with the standard 100/127 velocities all at the same values, for when you want that old school lazy approach. I like that too. But I think a mode to allow step input by velocity would be very useful. If you want to input a bunch of steps quickly with varying velocity, what would be easier - Input all notes at the same velocity (and a few accents) and then change each notes velocity to something different, or, input all notes at different velocities by simply hitting with varying force. Maybe you'll have a note or two to correct if you're not feeling very dextrous that day. But luckily musicians tend to have some concept of how hard to hit things.
But I definitely think the option would be great, then it truly would be the best of both worlds. Step sequencing that also responds to velocity input.