Interesting observation.
Subscription-based business models are a grey pattern, if there is such a thing.
At least they tell you upfront that this will be a recurring charge. So while the lock-in mechanism by requiring banking details upfront is prone to user error, at least you voluntarily sign up.
That said, some companies do try to hide/mislead even during sign up - including using introductory pricing that will change later, and other such tactics.
And the practice of making cancellations difficult is most certainly a dark pattern.