You can say what you want, this is my view. Steyn is an all-time great, but he is still overrated because I don’t think he is as good as McGrath, Wasim, Marshall, Ambrose, Hadlee, Lillee, Donald etc.
During his peak years, i.e. 2008 to 2014, South Africa had the strongest batting lineup in the world.
Moreover, his record against two very good batting teams of his era - Australia and England - is nothing special.
He was also an average ODI bowler, and got owned by Elliott of all batsman in arguably the most important ODI match South Africa have ever played.
Calling him the best fast bowler of all time - or one of the top three pacers ever - is definitely overrating him.
As far as Root is concerned, I think he is a brilliant batsman who will be unstoppable once he improves his conversion rate.
He is probably the only batsman in the world today who doesn’t struggle in any conditions and against any attack. He usually gets out due to his own undoing, the bowlers rarely get the better of him.