Can you share what aspects of the design you (and Stroustroup) aren't happy with? Stroustroup has a tendency of being proven right, with 1-3 decade lag.
Certainly we can say that Bjarne will insist he was right decades later. We can't necessarily guess - at the time - what it is he will have "always" believed decades later though.
You made me laugh!...Bjarne indeed can't be accused of being a modest man. And by some accounts, he's quite a political animal.
But in fairness, when was D&E first published? Argued for auto there, long before their acceptance. Argued for implicit template instantiation - thank god the "everything-must-be-explicit" curmudgeons were vanquished there, too.
He's got a pretty good batting average - certainly better than Herb Sutter.