Les Mis is a LONG book, so it would naturally be a long musical. If you cut it down, it just loses emotion and fullness. It is not about cutting it down, just the way it was written to begin with, it could have used a more efficient and abridged way to establish situations and develop characters.
Just because a book is long it doesn't mean that a stage
adaptation should be expected to be eternal. (Then Proust's masterpiece novel should be expected to be three days long? or even LOTR, for that matter.)
For what I know, by the end of its Broadway run, Les Miz was shorter than it was when it opened, and sometimes it's almost as 45 minutes shorter for international productions...that says something.
Listen, I don't take my clothes off for anyone, even if it is "artistic". - JANICE