A huge part of the Destiny budget was marketing. Actual development cost was high but nothing phenomenal. Hellblade showed that you don't need a huge budget to make a triple a game. I know its technically not triple a, but its basically just same quality as one although a bit shorter. But there are triple a games that are just as short if not shorter, look at RE7 for example.
I personally like the Kickstarter or early access approach, since some games wont get made unless people put money up front. Games like Divinity Original sin 1, 2, pillars of eternity or PUBG would never have gotten made if it wasn't for this. All 4 are phenomenal games that deserve all the praise they are getting.