I understand your point, but can you really think of more than a couple of national ideas that would trump the advantage offered by being one unit-type ahead of an opponent? Focusing on the military should mean focusing on the military, not avoiding military ideas in order to become more advanced in that field, or vice versa. To give a more specific example, a nation that goes for the Offensive ideas (many of which enhance the skills of generals) will end up with fewer points to spend on acquiring those enhanced generals. How does that make any sense? I am quite pleased with the monarch point system overall, but this seems like an error in design. It is counterintuitive and ahistorical.
In the course of a 400-year game, Prussia will likely only be behind in tech for a brief period.. then ahead-of-time penalties and neighbor-bonus will kick in and allow them to catch up, now with superior units due to ideas.... the same with similar issues (omg I have exploration / trade ideas, now I cant keep up in naval tech)...
I think people need to sit back and see how the game plays out without jumping to conclusion on a 28-year demo... the very fact that you can almost fill out an entire idea line by focusing it in the demo tells me that the issue won't be as big as some people make it out to be.
The hard part will likely be to balance the approaches.. eg. do you want to focus purely ideas and risk being squashed by ahead-of-tech opponents, in exchange for saving points later for cheaper techs for being behind? Or just be a little behind and balance the two as you go along.