Is pace considered in form? Slowing down the eccentric motion is one of the most important things. This is also easy to coach in real time with audio cues.
Personally, I'd consider pace secondary. To your point, time under tension instead of using your momentum would help a lot. Just an additional implementation layer. It's something that we're capable of doing - but like everything, it just takes time ahaha
With this version, we got the most important step down which is form. So on to the next! Thanks for the question! Let me know if anything else comes into mind!! This was fun :-)