I don't read this as changing anything. We have always limited the ultimate ampacity to the rating of the termination.
You just use the 90c column for dealing with ambient temperature and bundled conductor adjustments.
If you are using one of the restricted cables (AC, MC, RX), you end up with the 60c limit anyway.
They did change the name of 310.16 to 310.15(B)(15) but I don't think it changed. (that was a Mike Holt proposal, just to maintain continuity in 310.15)
