Well, I dunno if I'd say the pilot was painfully bad. But it sure wasn't good. I may be tempted to give it a chance. It isn't any worse than "Enterprise" and I gave that a couple dozen episodes before giving up on it.
But yeah. It's tremendously difficult update "Flash Gordon." And it isn't like BSG, where it only had a couple years in our culture. If you're going to do Flash, you really need rockets, Hawkmen, and a proper Dr. Zarkov. The high-camp cheezy FX version of 1980 worked. And the right person might be able to pull off a straight version of "Flash". But I'd be tempted to set it in the 1950s or earlier.
Really, doing it as a period piece wouldn't be that hard. You only need a couple shots on Earth and then you're off to Mongo and the period is limited to Flash, Dale, and Dr. Z's hair and mannerisms.
Oh, my biggest gripe was making Flash a mopey loser. Well that and no Dr. Zarkov. Dale can be relatively strong, but Flash is the Man--I mean shit, the story's title is his name.