The organisation version is a very capable and powerful app that unfortunately is not available for the professional non-corporate consumers that want to colaborate with others (the ones who are not a part of a company). In my opinion, I don't think that this version of Teams will be used just for casual chat and needs some more features from the org version, like actual teams with channels and different threads with apps and files. The current group chats are preety similar to a Skype group chat with some extra features and even though they might work well for some people, the ones who would really want to create a more complex and poweful colaboration (the non-organisation teams, for example mine- an independent creative board for running art projects) might feel a bit limited in their options.

For now I like the features such as the safe or shared calenders and tasks, but once the consumer app will get its "teams" it deserves, everything will be perfect.