As has been said many times before, when the next enemy has a credible air defence system capable of drone-swatting, anyone stupid enough to think that drones are the be-all and end-all will be right in the cack....
Drones have indeed proved very useful in the current north-west frontier war, but don't let anyone think that they're a universal panacea.
Regrettably, the sandaholic MoD seems more interested in cost saving than operational flexibility.