I think it comes down to species and the frogs individual personality. I've only handled my A.annae two times. Where my WTF get handled on a monthly basis. Only one of three doesn't seem to mind. Same with my sons FBT's, two will jump and fight, and mr friendly will happily hang out. Jumping exposes them to toxins on your cloths, the floors, and everything they land on.
I think only calm and healthy animals should be handled after a 6 month adjustment period. Never hold a frog fresh from the store. New environment is stressful enough