As far as I know they've always been selling it. From the block that was made for The Last Crusade (the Raiders block went missing).
If they are using the same materials then yes, it is 'The Hat'.
I think it's just the price that puts people off and there are many very good cheaper alternatives. As you you've noted versions produced by fans bashed and made screen accurate by fans.
If you buy the Herbert Johnson from replix it seems to not only be cheaper but you can order it bashed into the film style you want.
You could do the bashes yourself with a the Herbert Johnson hat of course.