No. They probably just don't realize that the KTEA-Brief is identical to the KTEA-3 Form B. I'm guessing they've never had to submit documentation, which is probably good, in this case.
From the publisher's website:
https://www.pearsonassessments.com/store/usassessments/en/Store/Professional-Assessments/Academic-Learning/Brief/Kaufman-Test-of-Educational-Achievement-%7C-Third-Edition-Brief-Form/p/100001342.html?tab=product-details#
"Standard scores from the KTEA-3 Brief may be used interchangeably with the subtest and composite standard scores from the Comprehensive Form."
https://support.pearson.com/usclinical/s/article/KTEA-3-Brief-vs-KTEA-3"The KTEA-3 Brief subtests are identical to the core subtests from Comprehensive Form B. This spares examiners the time of readministering subtests during a comprehensive evaluation. Customers who own the Brief and Form A can alternate the two, reducing the likelihood that changes in the examinee's performance are due to familiarity with the item content."
But if he's going to have a comprehensive eval in the spring, with a complete battery, that will take care of the documentation well in advance of relevant College Board testing.