I agree there's much improvement in A&C's skating in terms of power, speed, body awareness, improved concept, choreo and costume. They are showing more attention to line, and to intricate details. But I wouldn't say Aliona couldn't communicate well. She had to communicate well in order for A&C to show this level of improvement in their skating skills. They just need time and some coaching stability to put what they've learned altogether.
The reasons for the split are unclear, but possibly have to do with Aliona's comfort level in making a transition to coaching. She probably can't make a full commitment at this time, and A&C do need a full-time coach. We don't know what the understanding was on both sides when they leapt into this collaboration. But I think A&C should just take the positives from the experience and push forward. And the same goes for Aliona.
I'm just making a guess here cause obviously smth didn't work out, and it wasn't the technical aspect of coaching. But I'm in the dark as anybody else, which is fine. It's done now.
I wonder where should they go now, Canada?