I, like almost everyone else, interpreted the statement differently when it was made on stream. The promise was that “These weapons will not be available for Glory” is not violated by making them available for Diamonds; spending Diamonds (a highly limited resource that I could be spending to obtain Mythics) is a much higher cost than obtaining them for Glory was. That higher threshold should be more than enough “punishment,” as it were. It’s not like you’re giving them away for free, people who already have the weapons aren’t going to feel bad.
Keeping these weapons out of the store is hypocritical. There is a video earlier in this thread of Sirrain, under no uncertain terms, that they “don’t like locking away any of the game content away.”