As I've stated before, there's a HUGE stigma and buying priority towards having the "real deal" (aka anything with a Fender logo). By putting these in the unobtainable range for the majority of Fender's customers, you've now pushed them towards more "reputable" brands than Squier, like Ibanez. Bad move, if you want the company to survive.
I couldn't agree more. The separation of cheaper products from your main game with a different brand name is a really interesting one.
On the positive side, you don't "tarnish" the reputation of your A-grade instruments with the questionable quality control/construction practices of cheaper instruments, but on the negative side, you are (quite artificially) forcing the idea that those are sub-par instruments (if you won't put your name to it, why should somebody buy it?).
So people go out and think "hey, I could get a MusicMan SUB or like, a $300 Ibanez. Those brands make awesome basses! I've seen them, they're really cool!". Hilariously, the quality gap between a $300 Ibanez and a $3000 Ibanez is
obviously going to be (roughly!) the same as a Squire Affinity vs. top shelf Fender. I think most buyers know this in their hearts, too. The difference is, Fender have somewhat screwed themselves buy putting this impediment in people's minds: who wants to be inferior, and have INFERIOR proudly displayed on their headstock?
Returning to the "positive" side of re-branding, do you think anyone ever picks up a SUB stingray and goes "Man, Ernie Ball Music Man have really crap quality control". No, they think "This isn't as nice as the real stingray, but you get what you pay for!". So, do you think Fender were right to separate themselves? I certainly don't. Heck, people even complain about MIA Fender QC, so having Squiers out their with "Fender" written on them should be the least of their concerns!
While I do agree that Fender needs to streamline its offerings (discussed
here) I don't think they should, as you put it, "@#$%% the Dimension, Coronado, etc." By eliminating these models they alienate customers who want something other than a Precision or a Jazz...some people want to be different.
Some people do want to be different, and I do think it's a valid marketing strategy to always have something a bit unique in each year's product lineup. It keeps the GASsy people who have dough to burn coming back for the next offering. However, on the Dimension specifically, I do think Fender should focus on what they do best (with some unique twists) rather than trying to compete with a hugely established competitor. Imagine if EBMM brought out a P clone. That'd get some laughs

In the same way that anybody who wants a P bass (excluding boutique builders here) wants a Fender if possible, I think there is a minimal crowd who are keen for a Stingray without the EBMM logo on the headstock [I know there are a few out there, I've already trolled the Dimension thread, but there is a finite limit of these people - I don't think it's a long-game thang].
Just my $0.02. Interesting thread.