I have been privately emailed more info regarding the crash from an on-site source who is very knowledgeable regarding the matter (and does not want to get involved here in the forum because of all of the rock-throwing). It's my privilege to pass along the following:

1) The pilot is not an RCU member
2) He has MANY years in RC jets
3) A post-mortem has revealed that there was indeed a radio issue, specifically regarding uncommanded and asymmetric movement on the the flap channel.

Guys, it's natural and inevitable to critique others' performances and actions and there is often a lot to be learned from doing so. We WANT to believe that an expensive jet crashed simply because some guy can't fly very well and/or he screwed up, and that is partly because we don't want to be reminded that there are a lot of non-thumb variables which can waste $10,000 in an instant.

The trick to watching a vid like the one at the top of this thread is to do so while remembering that the "facts" are not always what we percieve them to be and that there is always more info than first meets the eye. Always.