While I'm neither a Brit, nor a professional historian, my understanding is that corruption - meaning everything from foot-dragging delivery to inferior & defective goods to exorbitant prices to outright theft - is an ageless problem in the UK military equipment & supplies business. And it was an ageless problem before the Acts of Union (1707, England & Scotland) had even created the UK. And it has rather often been a problem at such scale as to have serious strategic consequences.
(Not that the UK's gov't actually required outside corruption to ruinously squander military budgets. Try asking a naval historian about Britain's post-WWII aircraft carrier construction & refit fiasco.)
My point: News sources failing to flag defense sector conflicts of interest is a minor & downstream fuss over mediocre journalism. The real problem, from the PoV of someone who really cares about the UK and its future, is that Britain both wastes vast resources and punches far below its weight, due to its massive defense sector corruption & incompetence.