Army still runs the same offense. They adjusted away from cut blocks.
The problem with playing Army is that, over the last eleven seasons, WF has played Army (7 times) more than any other NCAA Team except for the six other teams in the Atlantic Division and WF's natural rival Duke. WF has played Army more often than UNC, UVA, VT or GT. More than it has played all of the other non-ACC FBS teams in NC, SC and VA combined.
Why? OOC games are precious. They are the only chance WF has the discretion to choose its opponent and bring a little variety to its schedule; draw fans; draw TV ratings. It's great that WF has a home and home with Ole Miss over the next two years. Even playing App or Tulane a couple times every ten years is compelling. As it currently stands, WF is set to play Army the next three seasons (two at Army -- not sure what is up with that). If so, WF will have played Army 10 times in 15 seasons. Pointless. WF has been there and done that over and over again.
Other than natural OOC rivalries (like FSU/UF, KY/L'ville, Clemson/S. Carolina, Iowa/Iowa State), you never see two teams play each other in OOC games as often as WF has scheduled Army. Really shows a total lack of imagination, against an opponent where WF has more to lose than it does to gain.