I’m pretty sure it’s because somebody finds it more visually pleasing and didn’t expect your use case.
As the person stated above, and I had the same issue on my phone trying to look and read something… you can make internal scroll bars look fancy and pretty too. I promise. 
2 Likes
Just for laughs, I made a Chrome extension that un-hides the scroll bars in a couple of places. Here’s the install, and here’s the code.
Of course, I make no promises whatsoever that this will work or even that it won’t blow up your hedgehog.
9 Likes
Thank you all for the suggestions! I’ll make sure the team gets them.