Well, considering there are literally HUNDREDS of homebrewed classes out there... if only half of them are convoluted then you ipso facto have dozens upon dozens upon dozens of completely comprehensible and quite frankly, actually QUALITY homebrew classes out there for you. You just have to find them. But if you refuse to go looking for it... that's fine, you don't have to... but this is exactly why WotC doesn't feel the need to do it for you instead. What you want IS out there, and WotC knows it. Which is why they aren't bothering to do it too. If they don't want to make a Psion or Warlord and they know there are plenty of quality psions and warlord classes to be found on DMs Guild, then they won't do it.
So you can either go find that class you want over at DMs Guild and play with it right now happily... or you can sit on your hands and cut off your nose to spite your face waiting for WotC to finally get around to it. Best of luck with which side you choose.