It's just not the best unit for 1s, deal with it. I know your frustration, both Axis factions are UP at them moment. This makes you seek a WildCard iWin Anti Everything tank to turn the tide and win the game after like 20 minutes of frustrating struggle against RifleDerps.
Point is, a supported KT (mostly in 2s+) is a beast. It really is. If OKW is overhauled/tweaked/buffed you would not need a better KT. Imagine if other units had better synergy with the current KT, what would happen then? So I think you want KT to be more powerful to compensate other flaws, which is not the way to balance OKW. OKW needs a total overhaul, and apparently relic is willing to do that.
If Relic removes OKW's fuel penalty then I can see the KT as being better, but I would still like some kind of speed increase or HP buff, because as is, it really doesn't combat tanks very well and given the fuel penalty you can't afford anything to support it. I think the Allied fanboys are still scared of it when it had over 400 armor, but now it doesn't plus most Allied AT got some kind of buff.
For a doctrinal unit this one goes next to the T34/76 as something that is too expensive and UP for all the tech costs you have to jump through to get to it.