It really is not needed, it has adaptive cruise that adjust to vehicle speed in front of you. The old pause and resume was needed for the old style cruise control where you needed to pause it when getting into a congested area.
I have never once thought I needed or wish I had a pause/resume on my Tesla.
My experience has been different.
I drive a 2019 Subaru outback. It is the first car I’ve driven that has adaptive cruise control. I love it and it is a great innovation. So glad that Rivian has it.
But when I have to brake due to some traffic exigency, I have to engage “resume“ in order to return to my Adaptive Cruise Control programmed speed and interval.
So, while not something that I have to use constantly, it is a very common feature and one which is very useful in appropriate circumstances.
It is also virtually an industry standard in American automobiles.
There is no reason I can think of for Rivian not to provide this feature. Other, that is, that they simply haven’t done so.
Wake up, RJ, and smell the coffee. Make this change so the rest of us, your loyal customers, can stop talking about this simple feature and correction.