It looks like the author was talking about an armoured BattleGroup exercise on Salisbury Plain or Germany.
The lessons are split. Some of them are 'Afghanisms' and relate directly to the use of TTPs in Afghanistan. Interesting that no mention was made of the 'Afghan Snake'. Most lessons in my opinion simply reflect a lack of experience. The British Army increasingly focused training away from high tempo combined arms operations against a peer/near peer opponent from 2008. There is very little experience left. This linked with resource constraints that mean that few units do much effective tactical training with their vehicles mean that trying to recover from this training/experience deficit will take time.

The article would have benefited considerably from additional context, in particular the exercise scenario. Understanding 'why' is far more useful then knowing 'what'.