Consistent precip and a lack of dry heat matter a lot more than individual dumps of rain. Despite the big rainstorm of over an inch, the brown-out never skipped a beat, and it's looking way drier now than it did before it rained. I think the problem is that by the time the grass turns brown it's basically dead/in hibernation, and it would take a few weeks of cool wet weather to bloom again.
Brown-outs have always been an annual phenomena sans the mid 1950's, 1962, and 1993, but to get them so early and so harsh year after year has been a uniquely modern phenomena. 2021 outright destroyed large sections of the backyard at my LC place