I have mixed feelings about this and I don't have enough experience to label on method better than the other.

Lambdas basically require zero maintenance. SQS requires zero maintenance. EC2 load balancer is zero maintenance. And the setup is trivial too and there's no migration time down the line.If you start off with native cloud for everything you can keep your maintenance and setup costs down drastically.

However, a lot can be done with the old school unsexy tech.

So I'm mixed.