Are the service concerns overblown?

I've been pining for a Rivian for over a year. Love the look, the brand, the adventure focused features. I rented one in Turo and was sold.

Then I joined this sub. Then I saw all these posts about actual nightmare scenarios. Having your Rivian in the shop 6 weeks with the company not even looking at it. Failure to fix issues. Needing parts for months.

If I'm paying top dollar for an SUV like Rivian, it has to be able to stay in great condition. I need to be able to trust that I can get it fixed in an effective manner.

Are these concerns overblown? As it stands now I think I'm going to have to rule it out and go for a Kia EV9.