User blog comment:Deathmanstratos/Call of Duty: Ghosts to have Dedicated servers on all platforms/@comment-71.194.87.135-20131009131148/@comment-1187559-20131009204025

The main reason the lean is so 'advertised' as it were, is because it's available on consoles, which is relatively new. Lean as a mechanic itself has been around for much longer than BF4.