Completely blocking the image information page to mobile user agents is completely unnecessary. I'd much rather look at your non optimized page than be told to come back on desktop.
Moreover, even after switching to desktop mode on my phone, there's nothing I see that precludes you from employing a little bit of CSS to make those pages render more nicely on mobile screens.
Seriously. I get the sibling comment seemingly from someone involved talking about eng resources being tight, but blocking it instead of just showing a desktop page feels absurd.
Fair complaint. As with all software development we make tradeoffs to try to balance time and capability. I’ll make sure our front end lead see this though :)
Moreover, even after switching to desktop mode on my phone, there's nothing I see that precludes you from employing a little bit of CSS to make those pages render more nicely on mobile screens.