Nonsense.
I definitely didn't say all shots grant EXP. I will do the numbers and get back to you (At work) but just because I don't wrack up 1000+ comments doesn't mean I do not know shit. Played since release (well when AMD drivers got fixed) and I know how the EXP system works.
Even without the numbers though, if you have an expensive (regardless of what you believe) tank which has a low armour value and large target size. Means that a greater % of shots are giving an EXP value. If the value is lower then that issued say by penetrating a Panther it is relative to the % of time you will achieve EXP split between full pen and deflection. As I said in the office and unfortunately not paid to justify myself to people online.