While that is true. They state that they are specifically giving every YC company this deal. So you won’t have to hope that they accept you into their program, once you’re in yc you’re guaranteed it.
(And for all we know, Google is willing to offer similar deals to other accelerators in return for some compensation.)
[0] https://searchengineland.com/google-reaffirms-15-searches-ne...
It’s likely so that GCP can get its hooks in these startups early.
That’s a well-functioning market, I think.