Jasperak
Adventurer
Why would you expect WotC guys spend their time in the section for games that they do no longer support and/or make?
I would expect them to be concerned when they have pushed away a significant portion of their paying customers. Understanding one's market and why so many did not follow along with the new edition is one of the primary functions of business. I'm not saying 4e isn't profitable, but there is what should be an easily tapped market sitting right here--Existing RPG gamers.
They should absolutely research why people play other games than their own. If they could put something in theirs that would bring people back without watering down their vision for the game, the game is enriched for it. Now granted there will be things that some want that are just incompatible which their existing design, but that should not stop them from innovating.