I have to agree on this, so-called endless pagination is a bad idea in any situation, on any site. There are many downsides to it, and literally not a single advantage – the only reason sites are implementing it is because it's a trend, and other sites do it too. People sometimes cite mobile accessibility as a reason. But every problem with endless pagination is twice as big a problem on mobile devices.
It shouldn't be too hard to implement this as an option. If we get word that nothing official is planned, I might just modify the photos plugin myself and provide a patch for others who are interested.