Okay so, this might be a really long post so apologies:
SP:
The first thing they mentioned is that he is very young and also looks that way (obviously). And after the program they said that he is still a bit juniorish.
About the jumps they mentioned his superb technique in 3A ("like straight from Mishin's textbook") and his really fast rotation in the lutz-toeloop combination, especially in the toeloop.
During the step sequence they noticed some Plushenko-like movements and manners especially in the arm movements.
And of course in their opinion too, he has to improve his spins to get them on the same level as everything else.
After the program they praised his precise work in everything he did and the huge amount of routine that he performed with. And I somehow got the impression that they were expecting higher points for Sasha but I might be wrong about that.
FS:
One of the commentators had met Mishin in the hotel, and he had mentioned Sasha's illness, and he didn't have any high expectations for Sasha. They talked a bit about him maybe not being in the best posible shape.
About the elements, really nothing special. He looked really sure about every element, spins again, all that. But they loved the program. They really praised the whole program from the music to the choreography and to the way he performed. They even compared his performance to Amodio's performance in the way that they both included the audience. Again the precise work in the whole program got a mention. And again I feel like they were expecting higher points, especially in the program components.
Overall they rated the free program higher, but both performances did recieve positive comments.
And in altogether I thought there were a lot or constructive comments.