I'd call it a very comfortable victory, not a landslide. I'm not even sure if I'd call Clinton '96 or Bush '88 landslides.
Johnson '64, Nixon '72, Reagan '84... now those are REAL landslides... if we are only to concern ourselves with the Presidential level anyway.
I would consider 364 electoral votes in todays america a mini -landslide.
Bush had all the "moral" backing and ideals in 2000 and 2004, but only was able ink out a small win ( 2000 he didn't even win), kinda sad considering this is supposed to be a "center- right" country.
Anything over 350Ev for a democrat is a landslide in my book.