They have no rules in play regarding modest travel means to work, Barca have so they can bollock players.
Their ethos behind it is, show humility, you get paid well and part of the deal is driving to work in a sensible car, don't alienate fans and so forth.
Utd have no such rules, i also don't remember the press knocking Utd back in the day when Ferdinand was cruising into training in some 300k super car, fuck off.
Also very much a cheap shot by the press, just say you are now outraged Utd are shit and a decent scapegoat is Depay. He has after all been very poor.