It's an officially supported approach that is under very active development and (at least ostensibly) covers what this tool does and more. The use of globals over ES6 modules is the most glaring omission.
From the docs:
Although potentially exciting, this is still really a WIP, use at your own risk.
Ember does a LOT of what I want recroom to be able to do, but I'm okay using something that works better right now over using bleeding edge Ember stuff that may be more idiomatic.
Of course, as more people contribute to and use recroom we'll evaluate changing out components. If I picked the wrong thing I hope people will correct it and make this thing better ^_^