Because the form states on it, "The intended use of this appraisal update is for the lender/client to evaluate the property that is the subject of this report to determine if the property has declined in value since the date of the original appraisal for a mortgage finance transaction." I can see that it should be considered part of an appraisal. While you can argue it is more of an inspection report, it does confirm and support what you have or detract from it if work was not done or conditions changed.
Under the OSC (16(b)(3)) it does state "Reports reflecting property inspections that do not provide an estimate of the value of the property and are not used to develop an estimate of the value of the property" can be exempted.
Therefore I would take the middle ground and say if the value is changed by this report it definitely is. If the report serves only as a confirmation it is questionable at best. At the end of the day, as a conservative compliance professional I would try to include this as supporting the appraised value and would look to include it.