Even if it's true, it's still on Honda. They have been dealing with suppliers for a long time and should know how to have a handle on this kind of thing. Could be that Honda knew steel might be delayed and was cool with the extra profit they thought they would be getting selling carbon rotors on what they expected to be an in-demand car.
This probably has some truth to it. When I asked about the steel brakes at the press launch one of the Acura folks was a bit surprised when I said that many customers for this car actually prefer the steel brakes. I have to think there are plenty of people on the NSX team that understand why someone would want steelies, but I also think there are several people in positions of power in the mix who didn't think it was a big deal that the steelies were delayed.
Truth be told, I don't think it would be a big deal if the performance of the car relative to the competition was much stronger. Like, if the NSX could spank the 911 Turbo S and 570S around a racetrack, the carbon ceramic tax would matter less or not at all. But as we discussed before, when NSX builds start to get close to what a 570S, Huracan, GT3RS, etc. cost, it begins to turn into an unfavorable comparison. At $155k the NSX's value proposition looks much stronger.