Maybe someone will finally offer a managed Ansible Tower service. I'm always surprised that Red Hat hasn't to date. Between managed git and CI with deployment to AWS, I have no desire to babysit, backup and patch a snowflake Tower instance.
And if you do use a cloud provider, you likely want to run Ansible in the same cloud, just for performance reasons.
Arrogant as it may sound, I'd much prefer to take ownership of that, personally. I'd be happy to self-host it and take the operational pains that come with it, and sleep (at least slightly more happily at night) knowing that I'm managing my secrets myself.