Originally Posted by
DaveSSS
I see nothing wrong with the crank, at this point. New cranks are always stiff due to a combination of seal drag and fresh grease. You have no pedals installed, so the moment of inertia is small - there's nothing to keep the crank spinning. You're worrying about nothing. Ride the bike 100-300 miles, move the chain off the crank and try your test again, with pedals still on.
I just got back from the shop. It turns out they didn't install the correct pieces. If you look
here, you can see the flanged cone washers. Instead of using those, they used smaller washers, which was putting too much pressure on the bearing cups (you can see these washers in my video). The cone washers allowed a more distributed pressure which allowed the cranks to spin more freely.
The wobbling was due to a little flanged washer that should have been inserted into the hole of the chainwheel. Placing that in corrected that.