With free trials, I can understand revoking the benefits once the subscription has been canceled. While I can understand the consumer's perspective of not wanting to be billed for future months (say if they forgot to cancel), free trials are intended to attract future customers. If a person signals that they are not going to be a future customer, why should the business offer the free service?

Apple TV free trials due to new hardware (e.g. new iPhone) is like this too, I just set a reminder on my phone and cancel it one day before they’ll start billing me. The UI for cancelling is also painless.

Somewhat tangential, but I am reminded of a quote about an adjacent problem with analogous flavor from the pen of the venerable G. K. Chesterton...

'It is really not so repulsive to see the poor asking for money as to see the rich asking for more money. And advertisement is the rich asking for more money. A man would be annoyed if he found himself in a mob of millionaires, all holding out their silk hats for a penny; or all shouting with one voice, “Give me money.” Yet advertisement does really assault the eye very much as such a shout would assault the ear. “Budge’s Boots are the Best” simply means “Give me money”; “Use Seraphic Soap” simply means “Give me money.” It is a complete mistake to suppose that common people make our towns commonplace, with unsightly things like advertisements. Most of those whose wares are thus placarded everywhere are very wealthy gentlemen with coronets and country seats, men who are probably very particular about the artistic adornment of their own homes. They disfigure their towns in order to decorate their houses.'