Nothing? I wouldn't call it nothing.... the reasoning isn't that plausible.
Does anyone have a list of the S&C tests that are kept as records? Again, how does one game a vertical leap or broad jump? Were there records set during the past 10 years that define human ability and therefore call into question the validity of the record? I doubt it.
What testing procedures and equipment are different today than they were two years ago? If they are different than 2 years ago, are they also different than 20 years ago? If so, and that's the reason for pulling down the records set during Epley's absence, then why wouldn't all records prior to 2014 be pulled?
I really don't care one way or the other, but a tiny amount of critical analysis demonstrates that the AD made an odd move and is now in damage control mode.
Ultimately, they are making the right decision by restoring the numbers.