I'm not basing it on any secret knowledge, just observations. There's a lot of bare concrete and corrugated steel around the stadium that's looking tired already, considering the stadium's still relatively new it all seems a bit "dingey" doesn't it?
The other comment was based purely on speculation too, £43m was daft cheap for a stadium, and I don't think there's been another similar stadium that's been built since that's been anywhere near that. If the stadium was to be given a facelift that'd significantly improve it (rather han patch it up) it would surely cost more than that.
On a related note, Toronto FC are soon going to be sharing their ground with the Argonauts (CFL team), but the owner of the ground has said he'll make sure that there's no trace of the other team visible when one team is playing, that would be the first thing I'd try and sort out at the KC, I'm not a fan of seeing Hull FC related facts and fiures around the ground, but it must be even more annoying for FC fans going into the "Tigers" toilets...