You say that you’re serious, but your comment sounds like a joke, so I’m a bit confused :)
So, in case you were serious: there are good reasons to use more visual and collaborative tools in a team, one is that people won’t learn emacs just to be able to work with others and I personally don’t really care what editors my coworkers use, another reason is that non-engineers are also part of the team, and another one is that JIRA/Trello/etc support integration in others tools (GitHub, Slack, etc.).
I was serious about using a decentralised version-control system & structured text files.
I was semi-serious, semi-joking about how wonderful it'd be for everyone on a team to use emacs. It really is the best editor in existence, and it really is usable by anyone, not just developers. And it integrates with git[0], GitHub[1], Slack[2] &c. too!
So, in case you were serious: there are good reasons to use more visual and collaborative tools in a team, one is that people won’t learn emacs just to be able to work with others and I personally don’t really care what editors my coworkers use, another reason is that non-engineers are also part of the team, and another one is that JIRA/Trello/etc support integration in others tools (GitHub, Slack, etc.).