So before it was open sourced, all those companies that couldn't pull it off themselves had scaling problems or not? So before Python had types was it hard to

So before it was open sourced, all those companies that couldn't pull it off themselves had scaling problems or not? So before Python had types was it hard to scale or not? Seems like you are defending "Python with types and lots of tooling" rather than Python "nice and simple language (until not)".