You are saying people that play this game are stupid? Sounds like a ****** rant to me.
WP7 has small market share, Rovio doesnt want to have resources utilized for such a small platform. Iphone and droid users are their bread and butter and they will continue to focus on them. When market share grows, it will be a different story, but until then, continue to expect resistance from developers to develop apps for WP7 platform.
This could also be a money play by Rovio to have MS pay them $$$ to have them do it. If WP7 market share is under 2 %, they have no incentive to spend resources and $$ to port or develop extensively for the WP7 platform. If MS comes in with a bag of cash and it makes sense to Rovio to port, it would be done. Money talks as always.