That may be true if 'hypothetical' is given its common definition. As an appraiser, doing and reporting an appraisal, the definition that matters is the one that you will find in USPAP. Opinions are opinions. They aren't hypothetical. They are to subjective to a greater or lesser degree. As you know... in appraising... a hypothetical condition means that I know it's not true but, for the purposes of analysis, I will pretend that it is.
The value opinion, by its nature, is hypothetical. It need not be stated as such, but it is -that is what constitutes an appraisal ( or estimate if it is a valuation )
The SCA ad defined in the MV opinion says the subject ( a house, for example ) the house closed/changed title as of the effective date in the appraisal. For example, the eff date of inspection/value is 3 days ago. Did the subject actually close and change the title 3 days ago ? No. It is a hypothetical appraisal "sale" for valuation purposes. On the cost approach, was the subject built/replaced 3 days ago? Of course not. It is a hypothetical event for valuation purposes. The MV uses the word implicit, which perhaps is a better word than hypothetical. Either way, it is not a real world actual event, it is created within the appraisal itself. In case certain people want to trash an appraisal for that, a valuation does a similar thing, but since a computer/AVM can derive it, it is called an estimate and not an opinion. The specified date in the appraisal is normally the effective date.
To sum up, did the subject, in real life, actually pass title/ consummate sale as of your eff date? 99.99 of the time, no, it did not ( or would not for a prospective date since it has not happened yet )
DEFINITION OF MARKET VALUE: The most probable price which a property
should bring in a competitive and open
market under all conditions requisite to a fair sale, the buyer and seller, each acting prudently, knowledgeably and assuming
the price is not affected by undue stimulus.
Implicit in this definition is the consummation of a sale as of a specified date and
the passing of title from seller to buyer under conditions whereby: (1) buyer and seller are typically motivated; (2) both
parties are well informed or well advised, and each acting in what he or she considers his or her own best interest; (3) a
reasonable time is allowed for exposure in the open market; (4) payment is made in terms of cash in U. S. dollars or in terms
of financial arrangements comparable thereto; and (5) the price represents the normal consideration for the property sold
unaffected by special or creative financing or sales concessions* granted by anyone associated with the sale.