Disable option for robots settings is misleading

[lostgeek]

Bug description

When choosing index options for robots_indexing, I would expect "Disable" to be equivalent to noindex. Instead, "Disable" seems to be "Fall back to default", which in this case is index.

And in general the distinction between robots and robots_indexing is confusing. Shouldn't there just be one or the other?

How to reproduce

Set "Indexing" to "Disable" and check the robots_indexing field in GraphQL (or similar).

Expected: noindex
Actual: index

Logs

Environment

Environment
Laravel Version: 12.62.0
PHP Version: 8.5.6
Composer Version: 2.10.0
Environment: local
Debug Mode: ENABLED
Maintenance Mode: OFF
Timezone: UTC
Locale: de

Statamic Addons
statamic/seo-pro: 7.12.1

Additional details

No response