I find it a bit disturbing that not only did it try to connect back to itch.io, presumably trying to phone home, but it did so with no advance warning:
Error encountered: HTTPSConnectionPool(host='itch.io', port=443): Max retries exceeded with url: /api/1/x/wharf/latest?target=theerogueone/that-new-teacher&channel_name=win-linux (Caused by NameResolutionError("<urllib3.connection.HTTPSConnection object at 0x7fd1810d9e50>: Failed to resolv'itch.io' ([Errno -3] Temporary failure in name resolution)"))
Its attempt failed because I ran it in a container with networking disabled in order to break exactly this kind of thing, among others; it printed the above-quoted text very shortly after startup. No, I don't know what it would have done if the connection had succeeded. It might be benign for all I know. But that it tried at all, without even telling, much less asking, me, and no warning on its page here? That is enough to bother me.
