The one caveat I'd add - are you worried that this may cause ruffled feathers with the school team, and if so, are you happy up to this point with the school's actions? Was it difficult to get the IEP or not-so-difficult? If you are overall happy and for some reason didn't want to point this out or make an issue of it, I'd consider letting it slide - only because you perceive a low risk of getting into a legal tangle later on, and also because you do have your set of documentation (from the note you mentioned above sent to the school in November) showing that you'd made the school aware of the eval. You'll still always have that evidence if you need it.
I'm elaborating a little because what pb said here made me remember something. At DS' 504 meeting in sixth grade (not the more recent one, to which I brought an advocate), there were several factually false statements made about what teachers had and had not been doing, and some things that were inaccurate about how the program functions. At the time, I didn't say anything because I didn't want to be petty, nor did I want to ruffle feathers, and didn't see it as terribly relevant. I was also, frankly, surprised and confused in the moment.
Not long after, I had a conversation with the counselor, who informed me that if I felt the meeting had been anything but supportive, then I had "cognitive distortions and needed counseling." I said that I wasn't sure how to perceive the meeting, because of misrepresentations that had not been corrected or clarified. The counselor told me it was dishonest of *me* to not say anything at the time. I still have no idea what she meant.
I had no idea I'd be tangling with his school for 504/IEP, didn't know his correct diagnosis yet, and didn't know he would struggle to the degree he has. We didn't have any of these problems at his previous school, where everyone had always been very supportive of DS and he did well.
I doubt very much you would be accused of being "dishonest" if you don't correct those points of fact, but you just never know when people are going to start acting...weird.
