I think the question is "why Julia?" instead of "why not Julia?" Python is the de facto standard, for better or worse. If someone wants to unseat it, they need a compelling reason. You shouldn't put the onus on folks defaulting to the industry standard to justify their choice over a much less well-known competitor.

I'm afraid Julia will always be ignored in favour of Python. Python/C++ have a firm grip over its niche for years to come.