You know what, Fred? I think Mr. Parks is right about a lot of what he says in this situation, and I'll tell you why.
First of all, as Jeff Davis pointed out, WCKY wasn't exactly a stealth launch. It was, quite literally, the talk of the town. Of course, as you point out, much of that surrounded Springer - but let's be frank about this. Clear Channel is not going to blow out the doors in promotion of any AM signal that is not WLW. Nor, frankly, should they.
They did a lot. The billboards are easy, since CC owns a truckload of 'em, and Springer got them untold amounts of free TV and newspaper promotion. If that man scratches his nose in Cincinnati, he gets ink and TV time.
He's a flawed host, and as it turns out, his show isn't all that interesting (IMHO). But I really can't fault Mr. Parks or CC Cincy for riding that horse in Cincinnati, and as I said in the blog, Springer's presence and availability there may have driven the entire decision to even start a libtalker there.
(Upon more thought about it, I think they may have eventually tried it without him, but they'd probably have moved Homer to 1530 back then, and put an all-syndicated 1360 up as a libtalker.)
Which brings us to your other contention - that "Homer" would be in the same boat as the libtalker if they'd just thrown on Fox Sports Radio. I'd agree, of course. But...liberal talk is a new format, and sports is not. Stations are finding some success with local shows in libtalk, but it is not a given.
I don't know the Cincinnati market to know if WCKY could have mounted a decent local liberal talk show or two (aside from Springer) and I don't believe it'd be as automatic as you seem to think it is. For one, much of the interest in sports formats is drawn by interest in sports, and Cincinnati is a pretty rabid sports market. Take a look at those numbers 1360 got when the Bengals were on. The only comparative factor on the libtalk side is a hotly contested national election, which is not really even guaranteed to happen once every four years.
As far as Mr. Springer's difficulty, another problem he has is right in the building - Mike McConnell. WLW is a unique and diverse station, and McConnell...while certainly no liberal...is no garden variety "right wing" talk show host, either. He spent countless hours and days on his show excoriating the right for its participation in the Terri Schiavo mess, and that's far from the first time he's done something like that.
As such, his audience is probably somewhat broader than most "conservative" hosts, and he's a very formidable obstacle for any "liberal" host to take any piece out of....
Whew. This got long, eh?
It would seem to me from the remarks Mr. Parks made in the Post that he may well agree with you and I about the nature of some of the current liberal talk programming. And though you would suggest replacing a Springer with Stephanie Miller, that just isn't happening in Cincinnati as long as Springer's in that time slot. If he's gone, and the station survives that, who knows...maybe they'll do it on 1360. But I don't give much chance for the liberal talk format to survive when Springer's contract is up...
-OA/OMW