I am building an enterprise app that is using google maps API. I see an interest from their side to use their own Maps API keys, instead of my own for the app. It simplified billing for my app and gives more freedom to my customers. Also, if my key stops working, their business will not be impacted and maps will continue work.

Does anyone know if it violates Google Terms in any way? I see in their terms part about:

Customer will not create multiple billing accounts or Projects to avoid incurring Fees, prevent Google from accurately calculating Customer’s Service usage levels, abuse any free Service quotas, or offer access to the Services under a “time-sharing” or “service bureau” model.

but in this case I am not sure it applies. Anyone here built anything like that or maybe someone from Google could advise?