Hmm, yeah, I see your point @KrzysiekDróżdż.
However, I'll say it still is a WP question. The fact that a Shortcode generated content will not be found in the Database and hence can neither be solved by plain SQL, nor by WP-CLI makes it a WP question. Also, the divi part is auxiliary information at best, it's the same for any shortcode implementation.
And likewise, that's only my point of view :)