A lot of people did pay for ad-free Netflix, only to wake up one day in the future to find that product ending, and a similarly priced tier that has ads in it.
Amazon Prime Video didn't have ads. Then one day it did.
Maybe you're right that _the masses_ need to start rejection ad-tiers, but so far we've seen that people will accept advertising to get more.
Your comment is so naive. Most products out there have a terms and conditions that equate to 'the company can change the product at any time and you're always free to stop using it', while giving their salespeople little to no idea about future progress because that would limit sales. Even if you didn't "maybe forgot to ask", there isn't anyone to respond with the truth.
If you purchase a product that doesn't have ads and then they introduce ads - that is a huge change in the value proposition of the product.