The Navy requirement for a shipborn small heli has always been too small to justify building a UK designed heli.
The Army where roped in back in Mountebatten's reign and the navy got the Wasp and the army the Scout.
Fast forward the navy wanted a larger cab and the Lynx, WG 13, was designed for them. The Army wanted a larger cab liaison & anti tank, so had no choice but to take Lynx and make it a practical build number.
Now the navy has gone for upgraded Lynx so if the Army likes it or not they get the Wildcat.
john