Good move for him, although Bottolo is a leader of Padova and one OH spot is probably reserved for him, both Loeppky and Petrov are very inconsistent, and Padova as a team struggles in reception (Bottolo is their best receiver, and he's definitely not a great receiver, lol), so he may find some playing time very early despite his young age.
On the other hand, Nishida's injury is more serious than it was anticipated earlier and it is possible he'll stay away from playing for a month.