You used the term ‘terrorist’. The document refers to them as ‘bandits’. Big difference.
He was involved in violence against civilian targets in pursuit of political aims, today he would be called a “terrorist”, I agree that “terrorist” is a much over-used and often inaccurate term but there are many people who would regard men like Robin Hood today as a “terrorist”, that is a fact.
I dislike the term “terrorist” but in King John’s England a “terrorist” is what Robin Hood would be.