It looks like the merge went through, but "Jennet Patton" was merged INTO "Jennet Unknown", which means that the Patton last name disappears. So if there's no evidence for the Patton last name that's the correct thing to do. Jennet's LNAB stays as "unknown", and the duplicate profile that was not properly sourced disapears.
Also thanks for highlighting this profile! Jennet's son actually married my great aunt, Abigail Edgar.