Pet gathering skills and character gathering skills are not connected. They don't have any influence on each other. So this is why your ore gathering skill is on higher level than your pet's.
And why is it stuck at 61 lvl? Because this is one of many things in Runes of Magic that need to be upgraded and adapted to current situation by the developer - but the things rest in peace, neglected relics of old great ideas... Maybe some day we will see them returning in an appropriate form.
With regards -
Vimma from Nawia