You answered your own question Montrala. They are not. HK416's are still killing lots of bad actors across the globe in the worlds top units and will be for a long time. Hell now the Marines have their new IAR's coming by the boat load too so it seems the HK416 user base is actually growing.
HK416 is still, 7+ years after its debut at the SHOT Show, the gun to beat. It has forced other makers to improve their products trying to knock HK off the summit but yet the best in the US are still using it and not POF, LWRC, SIG 516, Remington ACR, M4, SCAR, DD, you name it. That is fact and is undisputable.
I frankly would LOVE to see the HK416 replaced within select US SOF units as THAT WOULD BE ONE HELL OF A GUN!
G3Kurz