Correction: You can search Assault Roller with Gokipole. However, if it was just based on the actual archetype itself and not generic insect support, then yes, at the moment it's not searchable.
Doom dozer doesnt effectively do anything outside of extension, and also uses more resources. While aztekipede is also literally an extender, you banish less and make picofalena live a lot easier Not to mention sting lancer and contact c are always better search targets outside of specific scenarios