But one you need to take that POC and build a real product which needs to be supported, extended, and maintained, then you must choose tools which fit that long term need.
Many of use first experienced school in kindergarten. Kindergarten was an important step in our education and socialization. But we didn't refuse to move on to the next level, no matter how much fun it was or how nice our teachers were. Maybe some people felt unsure about leaving their comfort zone, but there's no progress without risk and effort.
Is a university student elitist because they know something a kindergarten kid doesn't? Should they stop trying to promote continued growth through the educational levels?
If you were to use production Python on any decent sized project, and you had also used Ruby (just one example... some other languages can be even more succinct), then you would hate Python.