Thinking of going to thermal race with grandfather

I'm an F1 fan - my grandfather used to be really into indy racing. He went to several races in Vancouver and across the states back in the day and followed every race on TV.

He lives in Indio in the winters now. I'm planning on going down to visit him and was looking for something to do with him while I was there and found the thermal gp would be on. Looking up previous races on the internet has come with some worrying reviews...

For 2025 is the race going to be a proper GP or something gimmacky? Please explain to someone not familiar with Indy racing.