People are missing a fundamentally important point. You CANNOT trust fremium services to prioritize your traffic at busy times because they will always cut back free users especially if it's interfering with the service they are providing paying customers. This includes Google Sheets, Netlify, Cloudfront, AWS, EVERYBODY.
To create truly fault tolerant services you CANNOT assume a fremium service will go out on a limb for you during a critical time.
To create truly fault tolerant services you CANNOT assume a fremium service will go out on a limb for you during a critical time.