What they fail to mention is yes, it's easily spotted in small scopes with the unaided eye but it won't look anything like the image presented here. It will appear as a tiny hazy patch with little or no detail whatsoever.
To obtain an image like this, it takes considerably more knowledge, effort, time, and adequate camera in the imaging train with a telescope mount capable of precise tracking of celestial objects.
+1
I check it in Telescopius. An 840mm scope captures it nicely. You are correct about everything you said, except it would likely not be visible to the eye through the scope. It would take dozens of long exposures to capture enough light to process.