There is a difference between free agents that fans want and players that just fit. For example, trading for Stefon Diggs would be a move that everyone in Dallas wants to see, but it might not fill the biggest need.
A more relevant example is that Von Miller was talked about non-stop until he signed with the Bills, but no one even considered the possibility of Laken Tomlinson (guard) joining the Dallas Cowboys. Even though guard is a more pressing need at the moment than EDGE. It is often more fun to discuss the players that we want, even if it might not be the best fit.