It certainly didn't help but I still think the major thing is the current team environment and the mindset it has created. England under Stokes and McCullum have engineered a very specific way they prepare and play in test cricket, not just tactically, but with the selections, this thing of picking players who have no track record because Stokes has seen something in them etc. They remind me a bit of modern corporate culture where people present themselves as 'disruptors'. I think they have wanted to break the established norms in an attempt to do things differently. I don't necessarily have an issue with this, it has brought some memorable and incredible test moments.
The problem is that the traditional ways of doing things are usually just so because they work. The current regime was always going to run out of steam at some point and this setup has created an environment where they do not have the knowledge and experience to draw on to change things, as they have a group of players where only two of them, Stokes and Root, have that traditional test cricket background. I know a lot of people have said throughout the series that the players need to change. I think the major issue is that they can't, because they have never learnt to play the way a lot of people want them to play.