The #1 hallmark of POP's playstyle is AGGRESSION. He puts his OKW trucks in ridiculously aggressive locations. His first healing bunker as ostheer is always in the middle of the battlefield instead of his base. He gets at least two light vehicles every game as every faction. He invests a huge amount of resources into low-tier units and infantry so he can win engagements far away from his own base.
I actually really like that you mention that his strategy seems approachable for someone that does not have elite micro skills. The amazing thing about OMGPOP! is that he makes beating the pros LOOK easy. That really couldn't be further from the truth. When you play that aggressively, there's a very good chance that one engagement could lose you the game.
Give his all-or-nothing style a try! Ignore the strategic and victory points initially and go straight for your opponent's cutoff. Set up your faction's forward reinforce/heal point in as aggressive a location as you can manage and pump out 2-3 light vehicles before transitioning to something heavier. Only back-cap if you can spare a squad away from the combat.
You'll find out very quickly that this strategy is harder than it looks