I should bloody well hope not!
I've often wondered what Arnold would have made of Roberto's symphonies, given that, symphonic in nature though much of Schoenberg's music was, particularly after his adoption of the 12-tone method, he himself never actually wrote a symphony; the second chamber symphony, which he returned to several times after commencing work on it immediately after finishing the first, in 1906, was completed in the diatonic language.