I'm the primary contributor to one of the tools you mentioned (claudiajs), and I fully expect them to at some point offer something that replaces it. the september 20th release of API Gateway was a huge step towards simplifying APIG + Lambda integration, and we were able to drop a huge amount of code from Claudia as a result. The Serverless Application Model released a few days ago takes care of coordinated deployment of API Gateway, Lambda and DynamoDB resources through CloudFormation, which I assume is the most common case for people using the Serverless Framework (another tool you mentioned).

I think this is perfectly normal and expected. When the platform is immature, small teams especially with opensource tools can move faster than the platform and plug holes in it, but then the platform can catch up and offer a systematic solution to a wider number of customers.

For us, Claudia was a way to get our primary app running in Lambda faster and easier. If they replace our needs with a systematic tool, I can spend more time maintaining my primary product and not patching up the platform. Although it's fun to do opensource tools and get some community support and feedback, the money comes from other places.

For people building startups to patch up platforms, the situation is obviously completely different.