Could also have been the other way around.

Fairphone removes the headphone jack > realize they would need an alternative > realize most TW headphones are e-waste to be > make their own with blackjack and hookers with a removable battery, making it a solution to TW headphones with non-removable batteries.

Don’t call fool without any proof, or you’ll have a very sad life supposing the worst from anyone you’ll meet. Coincidence is no proof of causation.