A lot of proto-linguistic (I say proto because linguistics want a real discipline yet) thought in the '50s-'60s did actually believe this. It was the informal basis for teaching lots of colonized peoples Western languages. It was the basis for the book 1984's Newspeak. It was also the hypothesis that motivated the creation of the Loglan (predecessor to the more well known, but still obscure, language Lojban) language. That you find this to be a strawman argument is a good testament to how widespread the knowledge of its disproval has become.
N.B. I also think in the pop programming language world (e.g. Twitter rants) that a lot of folks genuinely believe something similar to Strong Sapir-Whorf, at least as applied to programming languages.