I totally agree with you. I own all TOW games and I absolutely love them despite their flaws. It's a shame that they decided to stop the series (I assume this because since TOW 3 there have been no news).
Yes, infantry dies too quickly, can't even jump 1 meter high fences and are useless inside buildings but this game with just minor changes would be the best real time tactical game ever. And it hasn't got the steep learning curve and weird graphics that the Combat mission games have.
Such a shame, because there are no other games like it. (forget about Men of War or Company of Heroes)