Yep, looks clear. YOU would never have felt it, but whomever was aboard at the time certainly would have!
A solid blast with some coarse grit to clean off the surface, wipe clean with alcohol and let dry then just slather on some epoxy with chopped fiber filler to fair it up and cover with a sheet of woven strand well overlapping into the surround. once cured sand the surface fair and repaint.
Then go up to the base of the keel
and the keel/hull joint and VERY carefully go over it with a fine tooth comb to check it is structurally intact. If you can reach em, check the inside of the hull
and mountings too.