"The 'opt-in' nature...would set it apart from other
state internet privacy laws...
the proposed Maine law also would prohibit any [ISP] from
making the sale of customer data part of its mandatory
[TOS]. It also could not charge higher fees to customers
who refuse to opt in"
https://www.pressherald.com/2019/05/29/maine-on-track-to-pas...
And if an organization funded a report, it is unethical to hide that information. It is absolutely standard to attach notices of non-endorsement after funding disclosures.