Couple of points here.
It has been Chris Ball and his team at the EWS pushing for this for some time now, not the UCI seeing a lucrative new market and trying to step in. Two of the main reasons have been outlined in the PB interview. Anti doping. In order to have any real teeth any antidoping policy needs the backing of the International Federation. Due to the nature of the sport, Enduro would be a pretty good target for those looking for a bit extra to get to the top and we need to ensure that it stays clean.
The other main reason is transparency in the enforcement of the rules. Under the current model any penalties that are handed down are determined by the race director and Chis. This creates an issue when there are commercial arrangements in place with the industry and personal friendships with riders that could be perceived to cloud the desicion making process. By bringing in professionally trained commisaires (not someone who has done a few local XC races) this element can be cleaned up.
With regards to broadcast you need to remember that Enduro is more like WRC than F1. How often do you see an entire WRC event. It is nearly impossible to cover that much terrain in any sort of live setting. I think that the current model of having a 15 minute highlights package within 48 hours of the event is a good way to stay in touch (along with the various live update blogs etc). Last year there was also a 30 minute wrap up on ESPN, unfortunatly this did not air until November or December which could be improved.
For licencing. As it currently stands, to race in Derby next year you will not need any form of licencing however we are just working through this at the moment. If you were looking to race overseas you would need a CA international licence. The cost of this varies based on how long you need it for, from memory it is about $400 for a month. By all reports it is very good coverage when racing overseas where medical bills could very quickly get out of hand.