Well, let's see what FAA guidance and regulations say.
8900.2B General Aviation Airman Designee Handbook states in part:
Section 7. Conduct a Private Pilot Certification, Including Additional Category/Class Ratings at the Private Pilot Certification Level 58. General. The designee conducting the practical test reviews the applicant’s aircraft maintenance records, aircraft logbooks, airworthiness certificate, Federal Communications Commission (FCC) aircraft station license (if applicable), and aircraft registration to determine that the aircraft is Airworthy and suitable for the practical test.
The language is similar for other certificates such as Commercial Pilot.
So then, what is included in maintenance records?
§91.417 Maintenance records.
(a) Except for work performed in accordance with §§91.411 and 91.413, each registered owner or operator shall keep the following records for the periods specified in paragraph (b) of this section:
(1) Records of the maintenance, preventive maintenance, and alteration and records of the 100-hour, annual, progressive, and other required or approved inspections, as appropriate, for each aircraft (including the airframe) and each engine, propeller, rotor, and appliance of an aircraft. The records must include—
.
(2) Records containing the following information:
.
(v) The current status of applicable airworthiness directives (AD) and safety directives including, for each, the method of compliance, the AD or safety directive number and revision date. If the AD or safety directive involves recurring action, the time and date when the next action is required.
So, was the DPE wrong? I don't see how.