Isn't that more of an apology/dismissal than a solution? Saying it doesn't fit because these other things don't fit doesn't really address the concern about how Disney will better integrate Tiana into WDW's Frontierland. Even though cronologically it's a bit of a mess, visually they Old-Westified everything so it's kosher. They won't be able to do the same here, or will they?
Definitely not a solution. But, it was a problem... that should have been solved. But wasn't. So... why is it just now in need of a solution?
But, if people insist that the replacement fit "Frontierland," then where is their eagerness to get rid of a Deep South ride that is Splash Mountain, which didn't fit "the Frontier"? Or the outcry that Country Bears continue to exist destroying the theme of "Frontierland." Or the outcry that a Mississippi Riverboat of the Mark Twain era doesn't fit "the Frontier"?
Either "the frontier" has a specific time and place as most people would think of it, making three attractions within Frontierland non-thematic, and the term "Frontierland" a joke, OR... "Frontierland" has a much broader definition would could embrace the Mississippi of Mark Twain and the Deep South of Bears, SotS, and Tiana's Bayou.
I for, one would like to see a broader reimagining of the land. Perhaps unite the Caribbean of Adventure land with Tiana's Bayou and put Tiana's restaurant in place of Pecos Bill. Call the whole area "Mississippi Gulf." Then, the only attraction that's an outlier is BTMR.
Or, unite Main Street with Liberty Square all the way to BTMR and call it "The Journey of America" which has the mini-lands of Mainstreet, Liberty Square, Old New England (Harbor House and Haunted Mansion), Mississippi Valley, and The Old Southwest.
This way, Frontierland (and Liberty Square) wouldn't have glaringly misthemed attractions in their thematic lands.