The design of a modern tank is such that while a round may panetrate it, that round does not necessarily harm the crew or permanently disable the tank. Not an option if you're in a russian sardine tin tank, but ours have the systems spread out, and the crew much better protected.
I've never denied that tanks haven't been taken out. Of course it's possible with an RPG or an Iranian made EFP bomb, or just a whacking great blast bomb. It's one reason I didn't volunteer for armour. But to claim that 4 were destroyed in one day is ewok-grade wishful thinking. And yes, that does mean I'm accusing you of being a tiny cannibal space bear.