Amazon removed the comments from that review about 30 minutes ago. There was a comment from a journalist, Thor Benson, asking the reviewer about his experience.
> Well, whoever made it is really serious about providing support.
They sure folded early in this case.
In the tech support jobs I had back in the day, the customer calling the product a piece of shit was just a form of greeting. Surprisingly often, we were able to win them back. We didn't have the option of being this thin-skinned.
You are so misinterpreting the world. There are people who only review when they are facing an issue, and if they are happy they think there's no need of review because they got what they paid for. I wouldn't judge a customer as having abusive nature even if he has 100% negative reviews..
[0] https://www.amazon.com/gp/customer-reviews/R2XHHHGM6BEUG6/re...