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Assuming that those are the only unnatural links the site had, there's a good chance that when Google refreshes the Penguin algorithm again the site will once again look clean in the eyes of Penguin and be able to rank again. However, if Penguin refreshes soon, there is a chance that not much will change as Google needs time to revisit each of the offending linking domains and recognize that they are no longer linking to you (even if it is through a 301).  This is why some sites need to sit through two refreshes before they see a recovery. Keep in mind as well that the site has to have good links in order to see a recovery.  If the previous rankings were only supported by the equity that came through the 301 (prior to getting affected by Penguin) then you might not see much improvement once Penguin refreshes. Gary mentioned that the next Penguin refresh is probably going to be in the next two weeks.  I don't know that anyone knows that for sure...I'm thinking that this is a guess as it has already been seven months since the last refresh and historically the longest Google has gone between refreshes is 6 months.  I agree that it makes sense for Google to do it soon, but it still could be several months if that's what they decide to do.

Hi Clint I'm in agreement with your line of thinking.  Other than building links to the product page itself, you may want to change the way the page looks in order to give it that boost. As you will have seen - in this and other industries - Google is a fan of ranking informational content.  Subsequently, your resource page, which is more likely to have said content, will often rank higher.  The solution would be to add more of this type of content - unique versions of course - to your product page for Google to crawl.  Additionally, you may want to withold or remove that kind of content from the resource page if you really don't want it to rank. The trade-off comes with user experience - by demoting or even removing this resource page, will it come at a serious detriment to users on your site finding what they want?  If there's a hint of this answer being "yes", then I wouldn't do it.  User experience is paramount.  Instead, you may want to add my call to action/sales imagery and/or copy to the resource page to drive conversions. Hope this helps.

The problem is that plugin you are using, "Wordfence". It is probably picking up the crawls from Screaming Frog and Moz as DoS attacks because of the amount of requests from the same IPs. You could either see if the plugin IP whitelisting or why don't you just remove that plugin and use CloudFlare, which is free and offer an even more robust security option + an included CDN.

Thanks - I was not aware of that.

You're welcome, Clint. If the listing is new, that could certainly be a contributing factor. In the meantime, the client should be doing all he can to strengthen his website and citations and begin getting reviews. All of these will contribute to his hoped-for climb up the ranks. Good luck!