It's likely cherry-picked. There are many small ISPs who signed a letter saying otherwise:
> We [ISPs across the country] have encountered no new additional barriers to investment or deployment as a result of the 2015 decision to reclassify broadband as a telecommunications service and have long supported network neutrality as a core principle for the deployment of networks for the American public to access the Internet.
https://www.eff.org/files/2017/06/27/isp_letter_to_fcc_on_nn...