I enjoyed his movies in the 80's and mid 90's but now, it seem like his company buys footage from other companies and portrays it as their own.
I just watched "Off The Grid" and Jeremy Bloom is the narrator. There was "classic wit" from Warren himself, but that was just old audio clips from his older movies. I would imagine he is getting too old to be super involved in his movies, which is just a shame because he is a legend.
I think they are producing movies on smaller budgets trying to get the same result as before, and his movies are suffering. I have no hard evidence of this it is just my opinion.
I also think that warren miller film's target audience has no idea about the stock footage coming from other companies, nor do they care. Those of us that are familiar with the free-ski scene are the only ones that would notice this.
I do not hate him, I just think his company should bow out of the game gracefully as he is not so involved anymore. Although as long as there is money they will make movies.