It's impossible not to note the similarities of the situation, but there are some crucial differences. Among them, Atlanta had nowhere to play the next season - that situation does not exist with the Coyotes. Also, Chipman/TNSE were ready, lock stock and barrel, to take a team (in fact, it was very nearly the Coyotes rather than the Thrashers), while Fertitta is nowhere near positioned in the same state of immediate readiness.
What to make, too, of Elliotte Friedman's allegation on his podcast that the theoretical new owner of the team might have enough sway to keep the Coyotes in the Pacific? If the new owner was Fertitta, it stands to reason that playing in the Central would be ideal - in fact, the Coyotes' move to the Central is one of the key tenets of the Imminent Relocation Theory.
As questionable as Barroway's ownership/"ownership" looks financially, I don't think it's quite at the level that would demand an immediate relocation to Houston at the end of this season. And if Bob McKenzie's sources are to be believed, the Houston arena authority's reported lack of interest in the NHL at this time would seem to preclude anything imminent.
Anyway, Houston may still happen - just think the timeline is a little farther out than we expect. Not for nothing do I think that the Seattle timeline is as far out as they made it - if things aren't resolved with Arizona ownership before then, I think the Coyotes play their first season in Houston at the same time as Seattle starts playing.