I forget if I had a good reason for that or not. I wanted to keep things rolling along and initially I had planned for that mission to be the last but that seemed a bit too rushed at the time so I kept things rolling. I think the Vidar had served its purpose, he had figured out which hybrids were important, and he knew the GTVA was on to him so he used the Vidar to stall them.
I've played the whole thing through and am very pleased. I think there is a bug with the campaign file in the last mission as well because I was successful but the mission failed. Again if its a known error then no problem. Everything else is fine!