Well, one of the more bizarre things about German military performance and effectiveness in the war is that, for whatever reason, a lot of the hobby-historians that harp on how amazing the Wehrmacht supposedly was focus on an extremely limited set of events. Sure, if you cherry-pick the Nazis' best campaigns, they're going to look like world-beaters. But the German military also piled up horrendous casualties in a lot of its operations, even if they were often successful (for a limited definition of the word 'successful'). And it virtually collapsed twice in the summer of 1944: in both west (COBRA) and east (BAGRATION). Both times, the Wehrmacht was on the losing end of an incredibly disastrous and humiliating defeat. Yet for the German military's fanboys - and it's sad that such a term even exists to accurately describe a group of people - neither the defeat in France nor the total destruction of Army Group Center says anything about the overall quality of the Wehrmacht. It's bizarre.
I mean, some American formations, like their 82nd Airborne, took on vastly superior German numbers and won every time, on both offense and defense. Similar examples exist in the British and Soviet armies. Germany did not exactly have a lock on elite troops or amazing victories.
Obviously, the Wehrmacht did do some...spectacular...things in the war, and its numerous defeats don't erase the victories. But to subsume those defeats under the rubric of "overwhelming numbers" or "the Germans beat themselves" is ahistorical and frankly pretty disturbing - examples of the sort of chauvinism that, back home, would make one the butt of this video. Somehow, though, I see this opinion all the time when I teach history to Americans. This country is weird.
I am going to have to disagree with you about the "land war in Asia" bit but otherwise good post. 
Mmm i am not a german army fanboy, nor would i call myself a historian, to be frank i studied the second world war because it intertwined sharply with my own family. Beyond that, I do agree the Germans were on the losing end of some horrible campaigns, But as i said think the myth persists because they also won some fairly impressive victories.
Honestly if i hear about Rommel in Tunisia one more time i would scream, now Model in the Westwall... i can stand to hear...Model doesn't get enough love.
But yeah, to me it's just history that like many effected my own.
As in we had to bury a lot of people during and after it, But that can discussed later in a PM if you are interested in hearing old family war tales, Anyway
I had to throw in a reference to the princess bride when discussing the invasion of the soviet union, i am only human after all.