Nope, Python 3 is a sane upgrade to a sane language bringing many enhancements to the consistency and reliability of Python. And it is being used in many production systems already.
I've been an avid Sublime user for many years and still am, and this is what puts me off any electron based editor or app in general. The requirements for the most trivial things are so high, it is insane. Try running Atom on a AMD E1 laptop. TLDR, not very nice.
It's called "moving forward". The technology sector moves fast, and you need to keep up. Nothing is ever going to get better with that sedentary mindset.
Man, the amount of people and support going for Python 2.7 is mind boggling. Coming from another language, I find the slow adoption of Python 3 insane. Don't you want Python as a language to advance?
Python should've abandoned and deprecated 2 ages ago. I still see new tutorials teaching 2. What the hell.
There was this project called emoji.js I think that you embed in your site and transforms all emoji it sees into Apple Emoji, the standard, and works for everyone even without emoji installed. give it a shot.