What exactly is wrong with Tron: Ares?

I have a super high bar when it comes to films I deem acceptable of the action genre. For example, I think people who genuinely enjoy the Fast and the Furious franchise may just have brains the size of peanuts.

I'm not a hardcore Tron fan either. I loved Legacy, thought it was a rare gem, more of a piece of art if I'm honest.

Tron: Ares wasn't as good but I genuinely cannot fathom the hate?

So what's bad about it?