No, they are saying that as of 8/1/15 for HMDA reporting requirements the loan would be reported as a home purchase but for TRID the loan purpose on the LE & CD will be labeled home equity.
This is something that you will need to spend extra time on with your lending staff to make sure they understand the TRID purpose definitions do not have any affect on the HMDA purpose definitions. As you said, those have not changed.
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The opinions expressed are mine and they are not to be taken as legal advice.