This specific moment 9:28! Does not sound like Wagner, Brahms or Beethoven! This only shows that you have not listened enough to Gustav's symphonies!
The specific place sounds 100 % Mahler! Not Brahms, Wagner and absolutely not Beethoven!!
Of course! Shostakovich's 5th is fantastic, but that's not what I'm talking about!
It's the very special Mahler like orchestration!
There is a reason why Leonard Bernstein has stated that Dmitrij's music sounds best when he sounds most like Mahler!
You can't deny those words from Bernstein! He is after all one of the most important voices when speaking about Mahler's music!