The lego duplo relationship is not the same as controlling interests. Duplo was, has, and likely always will be a product line of lego, no different than the Harry Potter or Lord of the Ring sets. Its not incorrect to call a duplo brick a lego brick, just like its not incorrect to consider a new mini a BMW, but thats not the same as calling a Porsche a VW.
"In a field where an overlooked bug could cost millions, you want people who will speak their minds, even if they’re sometimes obnoxious about it."