I do not know Reviewer plugin, but according to the attached screenshots you cannot set in Reviewer plugin settings page if you want to place reviews to a specific WooCommerce tabs. You can get more information about it from the Reviewer team.
If Reviewer plugin does not support selecting WooCommerce tabs by checkboxes, but supports short codes, then you can apply the appropriate Reviewer short code in WCCT plugin. Select “Product tabs” menu, then choose the tab type on which reviews should be displayed and type the appropriate Reviewer short code into the “Default Content” field.
(Product tabs post type is for creating Tab types, and not for creating content of tabs, so you should not select the “Product Tabs” checkbox in Reviewer plugin settings page.)
I hope this information is useful for you.