Yes, I agree. I think some people become confused when it comes to technical ability. The most important thing for power is the non kicking foot, it must be level or slightly in front of the ball, this ensures that the body weight is in the correct position ( I know you already know this) Sterling has in the past had his non kicking foot away from and behind the ball, resulting in a lack of power or misdirection.
Sterling has so many other attributes that they far outweigh this weakness. His workrate, strength, speed, positional play, decision making, passing are all above average and make him an elite player.
I believe most of the world's top coaches would relish the opportunity to work with him as he has shown an ability to learn and improve each year.
So yes like you I hope he signs before January at a mutually advantageous contract.