I want your opinion: Gumroad doesn't accept Paypal

I recently started to use Gumroad and I loved it. It made everything easier, and I will keep using it to receive payments with credit card.

The problem is they don't accept Paypal and make me work twice to implement a solution to accept Paypal to my customers (I'd lose a lot of sales if I don't).

What's your opinion? Is this the right approach? They should care more about their users and accept Paypal to make their lives easier?

Thanks :)