Bryan,
a few questions:
did the pear arrive with the branches pruned as they are in the photo?
If so, was the other tree pruned in the same way?
The branches have been 'headed back' pretty hard-
I
generally leave my chosen scaffold branches 'as is'.
I'd say that the tree could take a while to recover from losing so much wood/roots.
That theory gets blown if both trees have the same pruning/conditions
Oh, and I'd mulch around the trees asap. I use chipped tree mulch around trees if I can-
the fungal environment created is ideal for trees, and it also looks good.
I usually dump it on pretty thick, so it's important to protect the trees from collar rot with a sleeve around the trunk's base.
Slitting the side of an old plastic plant pot, cutting out the bottom and slipping it around the trunk does the job.