It's a tough situation but understandable. Try to see graduate recruitment's perspective. It whittles down their workload somewhat. They are a very popular law firm. Also, their AC doesn't change much. That's anecdotal based on my experience. I've not got their AC however. Rejection is redirection in this case.I read that some firms have this policy. Didn’t know Macfarlanes was one of them. I would apply for the VS, but now I will stick with the direct TC.
It is very unfair since you may have performed well but might have been rejected because the VS was full.