No, the argument is, is there a compelling, dramatic reason for Janeway to come back that will produce a good story.
Was there a compelling, dramatic reason to bring back Spock? Nope. Was there a compelling, dramatic reason to bring back Sherlock Holmes? Nope.
However, there were fans who were willing to pay to see stories featuring these two characters. Many Janeway fans believe Pocket has been unaware of their existence. They wanted to let them know there is a market for stories featuring Janeway. That's now been done. Pocket will either do something with that information or not.
Rock on, kimc.
That's pretty much what we've all been trying to say. Thank you.

Despite its origin, "fan" has come to be separated from "fanatic" in it's connotation. There wasn't this sort of outcry for Sisko's return (which took... 12 books to happen, so can you handle another 10 without Janeway?), and I don't recall anybody suggesting Pocket was racist. Data hasn't returned yet in the... 10 books of the TNG relaunch, and there's not this sort of fury for his return either. (Thank you Memory Alpha!)
Fair enough, though I don't see why anybody would be interested in being labeled a "fanatic" since that typically has a negative connotation. I'll concede there are some things worth being fanatical about, but in general it's to be avoided.