Should i be worried about this?! – PICTURE with damage.

Thinking about buying this bike BUT it has a small chip/flaw in the carbon fiber edge right on the top tube/seat tube cluster (the seatpost clamp area), and I need to know if this is a minor cosmetic issue or a structural red flag before I spend 1200 EURO on this used Canyon Grail CF SL 7.
What do you think?

Thanks my cycling friends.