I think the $20 tier is enough for that content. The $45 seems like only extra cosplay photos. But the porn she watches is just some small clips that are meant to be funny and just like he said, half of the time she do not even see the clips. I don't know if that has changed now but it was like that previously.
The vimeo pages require a referer from patreon to work. You can forge it fairly easily with a browser extension like Referer Modifier where you replace the referer for vimeo.com with her patreon url.