Usually the best way to counter something you disagree with is to do it better, instead of whine about it.
I doubt this Colonel is the only one who whines about bloat and powerpoint presentations. In fact I'm certain that he is not. But just whining about it, publicly or privately, usually won't effect change. But look at what a humble Army Captain was able to do in Iraq several years ago.
Instead of whining, he just followed the military maxim of KISS and made his own powerpoint which unlike all of the other ones wasn't completely useless and effected actual change in policy.Enjoy.
Maybe the Colonel in question was a great Colonel, he wouldn't be the first military Colonel (John Boyd, Henry Hunt, Thomas Hammes, Ralph Peters, HR McMaster, David Hackworth etc)surrounded by scandal and controversy for their intriguing opinions.
In which case, it's a real loss.
On the other hand, maybe he was just a professional whiner.
In which case... good riddance.