On my perfectly honest view, I never, and from some discussions with others, never saw a changed date as a "major change" to the format of a series.
If we had implemented SCs, or somesuch, that's what I consider a major change...a date is a date if I'm honest on my view of it. The way and how a race is run is the format, and are the only changes that would be large.
The solution to run it but rename it is not acceptable on my view. I don't even see keeping our idea going on its current track as acceptable at this time...the only options I see are to return it to Thursdays and schedule someone do to the /qual and /restart etc commands and get replays posted; or scrap us running it altogether.
I will discuss it with Wilko, and we will come to a decision that will be made as soon as possible.