That's the thing , were any numbers released or are we all just gonna speculate here ? What is their growth rate, profit margin etc etc ? How do they fit in Google's business, can current Wiz clients be upsold on GCP more easily now? Can other clients be brought more easily to GCP now that Google has a good (I hope) cyber security solution to go with its cloud? Clearly there is some strategy going on here that is more than just the ARR of Wiz.
As a minor shareholder in GOOG as well I have no freaking idea about any of this, I sort of trust that they probably took a calculate risk and know what they're doing (and even if this is a mistake by 20B, that's not much for a company the size of Google).