[flakeoil]

Smaller companies probably use a small subset of the features in the SaaS. This means one of two devs with an AI can implement the used subset fairly easily.

Bigger companies probably use more features and have more advanced requirements and the SaaS is integrated in different ways within different departments of the company. This means more developers are required, more interaction with different departments and thus less benefits of AI versus the traditional way of developing without AI (as the actual work is more in coordination, specification etc, than the actual coding bit).