He seems to say something disrespectful every chance he gets.
My issue is that he's not that good of a producer to be talking like that. Anyone can make those one-note-at-a-time beats. A dope producer's sound can't be replicated (that easily). If he stopped making beats today, someone else could sit in for him and nobody would know the difference.
I still cannot understand how DJ Mustard became the hottest producer in all of hip-hop. I am not surprised by the fact that his beats suck (and they do) but at least pretty much everyone who has held that title in the past (even if a number of them also weren't that great) has had a signature instantly recognizable sound. He does not.
The "DJ Mustard sound" is basically picking up the worst trend of hip-hop from the late 90s onwards, which is the continued simplification and loss of musicality and identity in beats (i.e. the one-note, it-all-sounds-the-same kind of production that is the reason why the vast majority of music released since the lates 90s has been crap), and taking it to a new extreme. I just don't understand how anyone can like that (but then it is also true that I am not 15-year-old anymore). Hyphy music was simplistic but it had an identity and a certain vibe to it. Snap music from the mid-00s was extremely simplistic but it also had a distinct identity. Trap music has been far from simplistic - even if beats are often easy and quick to make, the best works in the genre have in fact been quite complex orchestrations, and it definitely has an identity, which is probably why it has endured for so long and has shown such a capacity to reinvent itself every few years. But DJ Mustard? Who is listening to this crap...
The good news is that he will enjoy his fame for another year or so and then will fade from the spotlight. The bad news is that the next one to take his place might be even worse.
P.S. The West was indeed dead and in fact still is even with DJ Mustard. Because the last and only time the West was really relevant, at this point more than 15 years ago, it had a distinct sound, and it was having that sound that made it relevant. Without a signature sound you can have individual rappers blow up, like Kendrick Lamar, The Game before him, etc., but you can never really talk about the region being on top of the rap game.