> Cold starts. This isn’t the time to dive in deep, but it’s a main reason why some companies decided against going Serverless.

Cold starts as an issue? I mean, all you have to do is create a CloudWatch event (or cron if you want an explicit server involved) to fire the Lambda function every few minutes and you're all good. Sure, if you get heavy traffic, I suppose you could have multiple containers running simultaneously? But that's also easy enough to handle w/ CW events.