This would of course come as news to the Russians, who absolutely creamed the much-higher-tech Germans in WW2. It turns out that five lower-tech tanks that start reliably are worth more than one high-tech tank that doesn't.
It's also worth noting that none of the technologies you list have ever been deployed in the field against a real peer competitor, and many have never been used in combat in the roles they were originally intended for. (The F-15 was designed as an interceptor, for instance, but in actual combat has mostly been used as a strike fighter. The M1 was designed to fight Soviet T-72 and T-80 tanks, which it has never had a chance to do -- even at the one real armor battle it has taken part in, the Battle of 73 Easting in 1991, it faced less capable export-version T-72s alongside older T-55 and T-62 derivatives.)
This strategy may have worked, but it's not acceptable.
The Nazis were a huge fan of the technological approach - they even called them "Wonder-weapons". In actual fact the vast majority of the "Wunderwaffe" were duds for one reason or another - a major cause was rushed development due to the desire to have the technology now.
No discussion of the two philosophies is complete without mentioning A.C. Clarke's 1951 short science fiction story "Superiority", which was doubtless influenced by the Nazi failure.
https://en.wikipedia.org/wiki/Wunderwaffe http://www.mayofamily.com/RLM/txt_Clarke_Superiority.html
With the exception of the atomic bomb, it's hard to think of a technological innovation developed during wartime, diverting resources from traditional combat tech, that changed the outcome of the war significantly.
What one has to remember, though, is that Germany was significantly more resource constrained than the Allied powers. Resources are not always fungible. If you have a shortage of steel and manpower, and a relative glut of engineering talent, it behooves you to invest heavily in R&D to use that steel as efficiently as possible and equip those men as well as possible.
In some ways, Germany was doomed the day America entered the war to be ground between the gears of superior industrial powers. They had to claw for some doctrinal or technological advantage, however remote the possibility, because the outcome of trading losses at a 1:1 ratio was absolutely obvious.
Any military that places inordinate faith in low tech solutions is liable to lose most of their armor and infantry to an aggressor that they can't even see, much less fight. That seems like the much greater hazard.