I never really thought there was much of a need for multiple cursors given the powerful refactoring tools in IntelliJ that work even with dynamically typed languages like JavaScript and Python. But given the clipboard interaction, I can see how this can be helpful.
I hope this also makes it into PyCharms and WebStorm. It's pretty awesome. Ever since we developed our IntelliJ IDEA plugin I've been using all these IntelliJ based editors even more than I've been using vim, which is a bit crazy, but the intelligence IntelliJ brings to the code you're writing is so incredibly useful and nothing else seems to be as good at understanding code. IntelliJ IDEA is an amazing editor.