the real risk is using it at all as you are already sending them your data. If you are ok with that, then this retention/review seems ok.
From a personal use perspective yes, the big issue here is enterprise and existing contracts as surely most companies will have signed zero retention.
There were two (expensive) exceptions / alternatives so far: Bedrock and Vertex. Their Zero Data Retention was in fact contractually enforced. Now it is all f...d because of these morons at Anthropic. For now I am better off just using DS via their API.
This is just a tragic moment for Tech. We just killed AI privacy. OpenAI already follows this trend and others will do too.
The only hope now is ... tada .. Mistral LOL