Gough and Millar Leave Smallville?

After seven years, the creators of the show that reinvented the Superman mythnology for a new generation, Al Gough and Miles Millar have decided to leave on the show’s end of it’s seventh season, which is moving onto an eighth and final season.
Click here to read the open letter.
I don’t know what to think. On side one of the argument there’s people that think it’s a good thing because they’ve taken out some of the flaws that the show has gone through and the other extreme are people that are jumping up and down with joy that the show is ending in a possible disaster.
I don’t think that way, I do agree that your producers who sticked with a project for seven years that you should see it through to the end. But without it’s creators, next season could easily go the downhill way espescially what happened to “Traveler” and “Veritas”.
I’m gonna hold my judgements until season 8 starts rolling.