In case anyone is unaware, Web.com is a pretty evil company.
From my experience with them, their practice is to sign up businesses to build a website, but Web.com retains ownership of the domain name. They make it difficult and costly to move the domain away, as they're the true owners. When I last interacted with them, I believe the exit fee was something like $150 to have the domain the customer already thought they purchased be placed in the customer's name.
In that way, I suppose acquiring Network Solutions makes sense.