Don't worry about it, is it straight, does it ride ok? I crashed my new R1 and that was then a cat C kept it for 7 years, it was a cat C because it was new and had a small mark on the frame so the insurance said its cheaper to replace the bike than the frame
I done a deal with insurance, kept the bike and repaired the damage (not the frame as the mark was so small less than 5mm
)
My car is also a cat C its been VIC checked and done 20,000 mile since I got it and its fine.
Cat c is beyond economical repair, so if it was new (less than 6 months old when it had the accident) and it had a damaged tank, fairing ,marks on forks, exhaust, panels would make beyond economical repair ( cat C )
I know it it p!sses you off finding out its a Cat C but if the bikes ok it dosnt matter
just trying to look on the positive side for you, I would have no issues owning a cat C bike/car
Mark