Is Investing in DV360 Truly Justifiable?

I stumbled upon an article on LinkedIn discussing DV360's tendency to prioritize its own inventory. This didn't come as a huge surprise, but what shocked me was the significant extent of this favoritism, leading to a considerable amount of budget being spent on subpar sites through DV360. The post/article can be found here for your reference: https://www.linkedin.com/pulse/you-buy-through-dv360-dr-augustine-fou-0gpme. My question to you is, have you experienced similar results, and do you think this information is trustworthy? What has your experience with DV360 been like? To be honest, this makes me hesitant to consider DV360 as a DSP of choice.