I agree with the general reasoning of what you say but in this case (and some others we could name) I'm tempted to call it a form of protest even. Basically letting them know that: "Your product is good enough that I respect it, but i think i'm justified in working around the way you've set up payment for it through so many dishonest dark patterns that some of them might arguably even be illegal themselves. So fix yourselves a bit first before acting like the only victims".
This just increases the overall badness in the world.
Unfortunately I do not know the solution; their product is simply good, and the alternatives are all lacking in some ways.