The 'squad player' thing just sounds like rhetoric to me. I can't see how, having watched Rooney, he appears suited to any sort of role here. Players like Giggs and Scholes, even to the point they retired, still regularly showed moments of genuine quality for us. Rooney is showing no such quality. As
@khoazany was saying, Rooney isn't the most gifted of players. He doesn't have the grace of Giggs and Scholes, and when his body no longer allows him to burst past players, his usefulness is very questionable.
It seems some would like him to be a squad player on the basis that that is 'what happens' when top players start to decline - however, there is no actual evidence that Rooney can still offer anything to United. Even at 40, Giggs was usually the only player in our squad who could do certain things - pick certain passes. etc. Rooney is not that player. If anything, Rob van Persie was always most likely to have greater longevity, due to being a more technically gifted player.
I am personally extremely disappointed with Louis Van Gaal. For me, he is going as far as to personally weakening the team's chances of winning a title by insisting Rooney play every game. Some of that is down to him not having better options (at the beginning of the season), but then this is also his fault, he builds the squad, ad obviously misjudged Rooney as some sort of 20 goal striker. I cannot help but think that if we had Martial (or someone useful) against Swansea and Newcastle - we would have made up the two points we are off the top of the league. The Swansea defeat particularly - Rooney squandered every opening we made. I'm not convinced that Rooney will win us more points than he will cost us this season, therefore, if we manage to win the League anyway, the achievement will be great. We would have basically won the league with ten-and-a-half players.