and this is a big part of why people find it hard to "join mastodon", this sets unreasonable expectations and places an impossible burden on people before they understand that the decision is not *that* important. promoting instances rather than the server software would likely have been better in this regard, but it wouldn't have made any of them sound as familiar as mastodon does now.
either way, it doesn't seem to be such a big deal. people eventually learn enough about federation and its benefits, and overcome the difficulties if they're sufficiently interested. or they will eventually get invited by their friends to join some instance and will later find out it's running mastodon ;-)
#TwitterMigration