When did I ever encourage blobbing? I simply said that OKW, from what I can tell, has been designed to lack an abundant amount of stopping power, at least until very late game.
OKW has plenty of ways to stop blobbing, but they're still more vulnerable to it than other factions.
The fact of the matter is that blobbing rarely, if ever works, in a high skill game. All factions have too many ways to punish it. Whether or not you can properly employ said tactics is another question.
OKW are not designed any specific way other than being a resource starved faction. If you want to play more mechanized you take the mechanized HQ, if you want to play more defensively with lots of infantry you go Battlegroup HQ.
OKW doesn't have any good blob counters outside of 3 things: 1. Just blobbing harder, which is the easiest option to do 2. Sturmtiger which even top tier players have a hard time using and 3. Spamming MG34's and praying for good RNG.
OKW's biggest problem vis a vis blobbing in my opinion is that they only have 1 area denial unit; the Schwer HQ. The Stuka Zu Fuss can't deny territory due to the long cool down and easy to avoid barrage. OKW getting a heavy artillery piece or a Self Propelled Howitzer would fix a lot of things in my opinion.