Do not 100% agree. Ice-dancing is not only for judges but for the spectators. I prefer to watch a dance when dancers fit each other. For example, how graceful, stately Oxana Domnina and Maxim Shabalin were. They would not look so nice if there was bigger difference in height.
Now ice-dancing moved away of the classical dancing, and pairs that do not look that good can win. For example, I watched Davis/White FD live on Moscow Rostelecom Cup last November and did not like them at all. Their music was too aggressive and heavy, skaters ran around the skating-rink too fast. I saw no beauty, no grace, mostly acrobatics. They were good technically, but not that nice to watch.
So now even with much height difference Yana&Fedor can reach something if they are good technically and meet the latest rules.
Ellen, your post raises up a number of competing thoughts that I hope others address, but my thoughts.
1. I think there's a difference between "height mismatch" and "not fitting." For example, I think Dubrueil and Lauzon fit each other quite well. The flaws they had didn't come from not fitting each other, anyway. Whereas a team like the Kerrs don't have a major height difference, but that serves to emphasize their flaws (lack of harmony/unison, extension.) Of course, each team had ways of working around/distracting from their flaws.
2. Domnina/Shabalin, at their best, were stunningly elegant. But it wasn't dance trends that pushed them away from that, and this needs to be reiterated. It was the fact that Shabalin's knees were giving out and this actually hurt their elegance. They tried to cover that up with outre programs that were "oo aggressive and heavy, skaters ran around the skating-rink too fast. I saw no beauty, no grace, mostly acrobatics," and it worked to the tune of a World Championship and Olympic bronze medal, but I don't see how you can criticize Davis/White's FD this season and not comment at all about D/S' efforts in that department.
But they did fit and fit extraordinarily well with each other. Biology had different ideas, however.
3. Conversely, I don't think Davis/White's flaws are because they don't fit, through and of itself, anyway. The criticism you have of them (mostly acrobatics) is reductive but not entirely unfair. I find they're so concerned with hitting the difficult positions in their movements that they forget the beauty of the movements. Indeed, when picking at nits between them and Virtue/Moir, that will be a pretty fundamental difference for me. I did think they started in the right direction with "Samson and Delilah" though.
4. Virtue/Moir have been consistently praised for the way they combine pure/classical dancing with the difficult stuff. I find it telling that they tend to fall a little behind D/W when it comes to the base values because they don't always hit the level fours in terms, but consistently outstrip them in terms of GOE and PCS. Hell, I can watch Mahler (and have) for the beauty of Virtue's arm placements alone (I'm in love with this team, of course. What Kwan is to Mathman, V/M are to me). They hit so many beautiful, expressive positions throughout their program and do so with a harmony of movement and body that can reduce me to tears.