Jim, I don't think the motion controller's calculations are particularly useful unless it publishes it so you can use it in some way.
There is a recommendation from Hypertherm to reduce cut velocity by 60% on holes < 32mm dia. This is often done by rules in the post processor.
But surely this is a bit crude. What if the table can cut a 15mm dia hole at the cutting speed because it has higher acceleration than the average 0.1G to 0.3G?
Say your designers habitually add a 5mm radius fillet on corners but the calculation says they should be using a 7mm radius to maintain cutting speed? A small tweak at their end will improve cut quality.
Usually when you set the motion controller up for a machine, you define the maximum acceleration for each axis. Thats the number you need to work back from. Then if your motion controller is kind enough to publish the arc radius in real time, you can modify your cut parameters if it can't maintain the desired cut speed.