The sheer number of high level enemies and bosses I've killed as a Warlock with one hit of my Eldritch Blast charged with Repelling Blast that throws them down a pit begs to differ. There's no ukulele strumming or bongos banging that'll top the fun and laughs I have every time I see an enemy relatively close to a big fall.
Other than that, the game is VERY generous with healing items and options all around. There's so many dialogue options which gave me DC 5 or less to pass, along with many inspiration sources that you'll barely need Bard's "essential" skills.