Normally the steeper HT angles are only on the larger frame sizes.
Looking at the NDS side, the TT/DT do look bent to me. I thought the fork was bent at first, but I don't think so, or at least not a lot.
Tire/frame clearance is also less than I would expect.
I am a professional bike mechanic with over a decade of experience. I am helping a friend sell their bike.
If the seller is truly a professional, that is a HUGE oversight. But he should also be able to answer questions about the bike.
If you are interested in the bike, I'd call him on that. Tell him that the photos look bent and ask him for close-up photos, and if he will double-check it before you waste your time and his time.
The price is on the high end of what I might pay for a bike in good condition, but not bad. However, it is about $150 to $200 high for a bent bike.