It reminds me a bit when Wenger went away from the solid Arsenal unit and tried to make them an "attacking" side, they've suffered ever since. They went away from mentally tough players and focused on soft technical players. Ironically, Ramsey was one of them.
I think we should aim for the prime Madrid way under Zidane, a good physical side capable of playing both on the counter but still had technical individuals to break down teams who sat back.
I don't think so. Mental toughness and being attacking oriented are not mutually exclusive. Prime Arsenal were one of the more entertaining teams in Europe. Henry's stats were incredible at the time. But as you said, they were more well rounded too with guys like Gilberto, Sol Campbell etc.
The problem is in the recruitment. We recruit too many one dimensional pussyfags who might be good technically but need players around them to babysit them. Someone like Arthur might be good at one skillset but poor at everything else. Or for example, ask Bentancur to be a DM and do the dirty work, he'll do that but if you ask him to pull the strings in midfield, he'll look out of his depth.
What we need are players who are more well rounded. A combination of stamina, technique and adaptability.
Hence it's no surprise to see players like Danilo and Chiesa are flourishing under this 'system'.
Not saying this is the absolute truth though. Ofcourse there are many variables that go into what makes a brilliant team. I'm merely trying to analyze the current situation.