Can we please not ignore the fact that the example being talked about was not one Churchill vs 4 Stugs but rather THREE Churchills vs 4 Stugs? Makes a hell of a difference to the balance discussion here. Stugs are not going to be effective when they are driving backwards while lowering accuracy, trying to get away from three tanks.
Also, I can't support a damage nerf to 120 since it will impacts way too many things. Damage vs Emplacements, Abandoned Weapons, Emplacements, AoE vs Infantry, Light Vehicles... List goes on!
People are mainly complaining about their Panthers or other High Tier units not detering them enough. Nerfing penetration will put the nerf where it is needed without hitting the unit with a sledgehammer.
I don't agree to many UKF stuff (yes because I am biased against them) but this post needs a well deserved +1.