You're getting a lot of stuff confused here.
Firstly, sure they have similar flaws but the magnitude is not the same and that matters (a lot). I'm pretty sure you already know this but for whatever reason you choose to ignore it and act as if it's others who are being ignorant.
Also the command issue in of themselves are not unexpected but the dead arm as exarcebating factor is not. Once again, you're ignoring a key piece of information. Perhaps you do it to be annoying?