Well, lots of conservatives (including 2/5 of the FCC) are entirely opposed to any regulation toward neutrality, whether under Title I or Title II or any other basis (and, in fact, many support Congress acting to eliminate any potential basis under which the FCC might adopt pro-neutrality regulations), so, sure, the proposed conservative opposition is not controversial at all (OTOH, its not much a basis for opposing any particular approach if you support the goal of neutrality regulation, since there is strong conservative opposition to the idea of pro-neutrality regulation, independent of the specific authority or mechanism.)