Yeah, I think Dior reached its peak of glory with Galliano. Ferré's or Bohan's eras were both quite dull. But ten years ago everyone dreamed about Dior and was crazy about it... Sales and notoriety were bigger than ever (I remember numbers from Dior), their prefalls and resorts sold like hotcakes... And many people from the industry would name a Dior show among their 5 faves. It was at another whole new level. Like in the fashion Olympus. Galliano was a total idol... But I agree Dior needed a change and Galliano was done with the brand for some years when he was dismissed.
The thing is that right now Dior is like... nothing. You'll find nice garments but you forget about them in a day. There's no substance. And you don't need to make a 'show' à la Galliano; you can be austere yet incredible (Lang for example, or Raf at Jil..).
And it feels like Dior success is all due to marketing. Like Frida's editorial success at Gucci. I don't get a genuine feeling towards his version of Dior in industry insiders, editors... You'll never hear anyone talking about Dior or wanting to buy anything from Dior.
Gucci, YSL, Céline, Vuitton... people crave for those brands. I know nobody who has bought a Dior thing in the last... maybe three years. Yet editors die for the brands I metioned before and even poor girls save to have something from them.