Should chat input box block typing when sending?

So currently chat input box uses same post status form which blocks all interaction while it's sending, it makes sense for statuses. When chatting you often want to start typing the next message immediately after hitting enter, but this mechanism blocks it, it becomes very clunky.

The challenge is handling posts that fail to send if we unlock the form immediately. they'd have to retry sending a few times and somehow indicate that they haven't been sent.