Wow, those are great scores! As for the immediacy of MAP testing, one possible reason is that some schools only have access to the MAP testing during certain periods of time, so the window to take the test may be soon closing. Our school also wanted our DS to take MAP testing the spring of his kindy year, which he did. We are not dealing with the stress or testing anxiety, so take my comments how you will. The MAP testing is a great tool to find out what your child knows now. It is not timed, your child should be given as much time as he needs. He will be able to keep going as long as he answers a certain questions correctly. It is possible that your school finally does "get" it, and they're trying to plan for next year by seeing where he falls. Schools are much more comfortable dealing with testing that they regularly use.

Hopefully, they will take your DS's anxiety into consideration. Good luck. Oh, and apply for DYS!