For small deployments you're right. If you have a lot of subdomains coming and going you will hit the Lets Encrypt rate limits real fast. They're generous enoug

For small deployments you're right. If you have a lot of subdomains coming and going you will hit the Lets Encrypt rate limits real fast. They're generous enough, but I've hit them quite a few times. For certain use cases a wildcard cert just makes way more sense.