This Data Explorer query, when run on Movies&TV, gives us a list of incoming migrations. It's not filtered only on migrations from SciFi, but 99% of them are, so I won't bother forking the query to allow filtering.
Results: From the beginning of 2014 there have been 14 migrations from here to M&TV. None of them have been rejected by the M&TV mods, although there were a bunch of rejected migrations back in 2013 - some as Duplicates, others as Unclear or Off-topic. But all in all, mostly unrejected.
I don't know if 14 successful migrations constitute a large enough sample to say that it should be added to migration paths, but I tend to think so, with one caveat: we need to be clearer about what doesn't fit here and should move to M&TV.
This discussion the other day shows that some people, including high-rep users, aren't entirely on the same page regarding what should be migrated. It's clear that non-SF&F movies or shows should go. It's pretty well established, I think, that asking about a non-genre show or movie is probably fine if the question related to a genre-ish element within that movie, but having a bit of genre-ish content doesn't make a show SF&F automatically. But what that discussion seem to indicate is that non-genre questions are off-topic, even if they're in an explicitly on-topic show.
This, I think, is unclear to all. Is this the consensus opinion? Where exactly is the line drawn about non-SF&F elements in SF&F works?
Once we've established that, I think the migration path should be added.