At first i thought it will be just another hype creating article, but reading about the Abrams fuel thirsty engine problems really impressed me. Its the Achilles heel noone talks about. Abrams need a MASSIVE line of fuel trucks presenting to the enemy a lot of soft targets and the beasts under belly.
Firing missiles from the Main gun is nothing new for soviet tanks. They have been doing it since 1976 when they armed their T-64B's with the Kobra.
Its a concept Western armored commanders never accepted or fully understood. My conclusion is that Americans have never been able to comprehend armored warfare since its inception. Even in WW2 they were stubbornly sticking to the concept of Cavalry and Infantry tanks while Germans and Soviets were making T34s and Panthers. And now they dont understand the importance of missiles fitted in tanks, greatly out ranging their opponent.
That said, Missiles saw some use in the now retired Sheridans and Starships tanks.
Guess you never heard of the M551 Sheridan tank. Been done since the 60s.
The U.S. understood the concept of tank warfare and had real tanks based on WW1, but remember that the U.S. was a in Great Depression from the 30s and was not at war til 1941. Most of our tanks were medium tanks fighting against Germany with heavy tanks and experienced crews.