I partly agree. Some of my favourite games of recent years were literally only possible through Kickstarter, with Pillars of Eternity being the biggest of them all. That game was backed by so many huge names in the classic CRPG industry that investing in it was a pretty safe bet (I didn't, but I know a few folks who did). They knew exactly what it took to make the game they were promising, so there was little risk in it developing into a Star Citizen-like fiasco.
Investing blindly into in-experienced devs who are overpromising on a comparatively tiny budget however is an issue, and something, I hope, people are waking up to now. And in cases like Star Citizen, I hope developers will have learned not to overpromise full stop, on any budget - Or at least do not let feature creep take over production entirely.
My #1 favourite game of all time wouldn't have even seen an English translation if not for Kickstarter, so yeah, it's not a total scam if you stick with tried & true developers.