Insurance is supposed to pay out replacement cost. If his was mint, then they would have to pay the lower value they showed PLUS the cost to bring up to mint.
Think of it like a collectible. You have a mint condition (say Gordie Howe rookie) and it is insured for fire at about $15,000, graded, appraised, etc., and you have it in a bank vault somewhere. Bank burns down, card is toast. Insurer says they found a rookie card on ebay for $2000. It's not graded or anything, one corner is peeled sortof, might be a crease too. But hey, it's a Gordie Howe rookie right? They only have to $2000 or they have to pay the appraised value. I think that makes it pretty obvious.
In this case a mint 96 SRAD is a lot harder to replace than an operable (assuming some DB hasn't got ahold of it) 06 gixxxxaaa!! (TM).
In the case of vintage vehicles that are in top notch condition (and vintage happens a lot earlier in life to motorcycles than cars), you might be advised to get your $95 appraisal every year, before crashing it. At that age there's a big difference between "mint" and "runs".