> which seems to directly oppose the CCPA.
I have some background in data privacy compliance.
It sounds like they are claiming to be a Service Provider under CCPA, which is similar to a Processor under GDPR. Long story short, a Controller is the one legally responsible for ensuring the rights of the data subject, and a service provider/processor is a "dumb pipe" for a Controller that does what they're told. So IF they are actually a Service Provider, they're correct that the legal responsibility for CCPA belongs to their customers and not them.
That's a big IF, though.
Being a Processor/Service Providor means trade-offs. The data you collect isn't yours, you're not allowed to benefit from it. If Flock aggregates data from one customer and sells that aggregate to a different customer, they're no longer just a service provider. They're using data for their own purposes, and cannot claim to be "just" a service provider.