

It may act on the whole market, but it doesn’t have the same impact on every OEM.
It’s a bigger issue for Valve than the console competition, who have established supply chains potentially with fixed prices for certain terms or at least more significant volume discounts, and proprietary compatibility hurdles binding their customers, so they can sell hardware at a loss if they want to.
If Valve sells the computers at a loss they run the risk of people buying them for other uses, without generating corresponding Steam profits.

The bad config file is somewhere in the middle of the chain of causality.
They changed database permissions, revealing a dormant bug in a database query, leading to config files being generated badly with duplicate lines, making them too large for intake by the bot detection service, which didn’t have good input validation and made the process panic instead, ruining the service.