And Why should everyone have an inferior line in their toolbox? 5.Bc4 is not best here, and Black has better ways to take advantage of all this rather than transposing into a Najdorf/Scheveningen hybrid.
And what says everyone should have any opening in their toolbox? Maybe some of us play 1...e5 instead of 1...c5.
I played a very nice game today which I believe shows a thematic sacrifice in the opening that all chess players should have in their toolbox.