No, the stories came from Patton who publicly didn’t want his troops demoralized but privately reported on how mismatched the Sherman was against the Tiger.
“Even when upgraded to a 76mm, the M4’s armament could not penetrate the frontal armor of the more heavily armored German tanks and assault guns. Therefore, standard tactics for a five-tank platoon engaging German Tiger and Panther tanks required one section to draw the Germans’ fire, while the other section maneuvered to the flank and engaged the German tanks from the side or rear. Such tactics were not morale-builders for tank crews.”
No, the stories came from Patton who publicly didn’t want his troops demoralized but privately reported on how mismatched the Sherman was against the Tiger.
“Even when upgraded to a 76mm, the M4’s armament could not penetrate the frontal armor of the more heavily armored German tanks and assault guns. Therefore, standard tactics for a five-tank platoon engaging German Tiger and Panther tanks required one section to draw the Germans’ fire, while the other section maneuvered to the flank and engaged the German tanks from the side or rear. Such tactics were not morale-builders for tank crews.”
https://www.globalsecurity.org/military/systems/ground/m4-tiger.htm