The Software Recommendations SE site is an early public beta that's much different from most Stack Exchange sites. They've taken on a topic that most Stack Exchange communities aren't willing to engage, and they created a rigid set of guidelines regarding what to ask and how questions should be answered. In short, they've taken recommendation questions, added more details and constraints to them, and turned the answers into a product knowledge-base for people looking for information to help them make informed decisions.
Due to the nature of the topic, that community asks that we -- and all other Stack Exchange sites -- refrain from migrating any content to their site.
Additionally, Stack Exchange disabled migrations on questions older than 60 days. So at this point, we're just stuck with these questions. :)
As for what to do with such questions, the main reason we added them to the do not ask list is because they attract such horrid answers. But the example you cite actually appears pretty decent compared to other recommendation posts. If one of us were to edit it a bit, convert some of it to bullet-points/formatted lists to make it easier to read, and overall make it look like something we're proud to have on our site, that would allow us to re-evaluate it and determine it's future, whether that be leaving it open or marking it as off-topic. Cleaning it up would definitely help us see if there is any real value there or if it's just noise. Hope this helps!