Timeout not deleted when deleting selected transients

I use this plugin to view transients mostly. I’ve used it recently to delete selected transients, too. More exactly, I opened /wp-admin/tools.php?page=transients-manager, searched for the pattern wc_report_, checked relevant items, and issued Delete selected and Apply.

When I browse my wp_options table now (SELECT option_name FROM wp_options WHERE option_name LIKE '%\\_wc\\_report\\_%'), I can see orphaned timeout items related to the deleted transients:

_transient_timeout_wc_report_categories_0f16e36e6480b002b28c166763960842
_transient_timeout_wc_report_categories_797a74d235a8d655a06e4e6050e4e603
_transient_timeout_wc_report_customers_1200493ce97da3fa87814b9581f03b64
_transient_timeout_wc_report_customers_20ac89f4d7b0f8e1154a2d03db8cbb8d
_transient_timeout_wc_report_orders_42609c9137014031cbfea53e91e4778a
_transient_timeout_wc_report_orders_stats_0115cc069d10e37ef0d7528bed0ea474
_transient_timeout_wc_report_orders_stats_07b22bceefd285405a8482d86e44307e
_transient_timeout_wc_report_orders_stats_08b5172b6e8e4b076946ead0081506cb

…and so on.

Shouldn’t these items be deleted, too?