Not at all. A toe nip will not be noticable in its mobility or the way it climbs.
My youngster is missing three toes from her back foot but still climbs and jumps like a champ.
I'm pretty sure your beardie will be absolutely fine.
My alfie's the same, has a toe nip but you wouldnt notice it at all.
If the toe's still there but at an awkward angle or whatever (like alfie's was) its most likely to fall off after a shed, so i wouldn't be worried
I agree, Beardies are very resiliant. Gizmo my 2yr old female had an issue with a broken toe, the nail fell out, and it is now left quite bulbus, but she dosnt even notice it when she is off exploring!