Yes, that's a good thing.
On the other hand, if you see a 17-year old player who is weak and he is pushed around, you hope he will get stronger with time.
But you can't expect that with a 27-year old player. He is at the best shape he will ever be. If he is weak, he is weak, that's the end of it.
It's not match fitness, it's not transition. He is just weak for the Premiership, that's all. In a different country he will be fine, England is too physical for him. He is pushed around too often, he bumps into players and with him it seems that he bumps into walls, he is just too weak.