Original V1 kickstarter backer and + owner here. I have thousands of miles on my OW's. I have never understood the motivation to push through pushback. I've understood the resulting shock at nosediving after pushing though pushback even less. Pushback is a safety mechanism. You ignore it at your peril. You may not get it at 20 because the motor is maxed, but you got it at 16. I know because I have every time. If you can't feel it, you need more practice at low speed. Marketing aside, this is not a 20mph board. It's a 16 mph board. If you want 20, buy a boosted, Evolve, Metro, etc.
I remember early days with V1 when there was zero pushback. That was dangerous. FM fixed that. Nowadays, riders leaning through and ignoring the very safety mechanism FM added and then being surprised when there isn't some second, never mentioned, magical safety mechanism baffle me.
Be safe out there - read the manual and heed the warnings from the manual and the firmware.