SaaS was born from comments like this. Paying to keep the lights on, effectively ensuring that an employee quitting won't undermine the entire operation.
SaaS companies simply cannot be trusted to not leak customer data. They always will leak it to hackers. This is different from major clouds and self-hosted services which have different sets of security considerations. Snowflake validated this assertion this year with a major data leak.
Also, with SaaS, you pay 5-20x for everything. For example, you can self-host Airflow in a $20 USD/month VM, but any managed Airflow service is going to cost astronomically more.
