Of course I looked at your plugin before reviewing it! Since a couple of weeks have passed since I reviewed the plugin it's quite easy to find in Google now for relevant searches (guess you've read it).
I've deliberately NOT posted the link to my review because it would look like self promotion (leave that to Google). When I looked at what the plugin did was hoping it was a good plugin, would be great to find a plugin that advises on content SEO with an affiliate program so I could review AND promote it (one of the reasons why I looked: if it were a great plugin I'd be an affiliate).
Anyway, regarding the article http://moz.com/blog/are-exact-match-domains-in-decline which you are relying on for your incorrect statement Google will ban a site for having your keywords in the domain and title tag. Can I point you at this little section:
Correlation vs. Causation
Let’s get this out of the way – just because EMDs hold less spots in the top 10, that doesn’t necessarily mean that Google has turned down the “volume” on EMDs as a ranking factor. It simply means that less EMDs are ranking overall, and that could have many explanations. What we’ll be looking at here is patterns over time, to try to tell more of the story.
Likewise, Penguin correlation is not Penguin causation. I don’t think that Penguin directly targeted EMDs. I suspect that, by targeting some forms of spammy anchor text, Penguin disproportionately hit EMDs. Many people who use EMDs solely for ranking purposes are also aggressive with exact-match anchor text. The EMD drop was probably collateral damage.
That is pretty much how I'd have described any drop in EMD's ranking as high as they used to. Basically Google has got much better at determining aggressive SEO tactics, a shady SEO technique that worked a few years ago will not work as well today. There's a lot of black hat SEOs who use EMDs, but that is not the same as EMDs are banned by Google as matter of course which is what your plugin advise is.
Even if Google were taking EMDs into account less so today that is FAR from a Google ban, ranking factors value change all the time.
There's strong evidence Google doesn't count backlinks as highly as they used to, but you wouldn't argue gaining backlinks per se will get your site banned!
You have based an aspect of a plugin on very bad SEO advice that from the looks of things you've misunderstood the article you are relying on.
It's interesting how I own two EMDs for the theme I develop and they are number 1, 2 and 3 in Google for the exact match search (3 million+ competing pages, 37K "exact match"). Number 4 is a WordPress.org page (for a plugin I created), number 5 an exact match blogpsot blog review page, If your advice was correct why are those domains not banned from Google as you say they will be? One of those domains is ranking number 5 for squirrly review: doesn't look banned to me.
Good advice would be if you tend to follow blackhat SEO techniques, and plan to scrape content from sites like Wikipedia, Twitter, Google image search using a plugin like Squirrly don't be shocked when your site is downgraded in Google from low quality content.
I fully standby what I said and the review.