Zone with no interface

I just ran through a portal to zone with the interface turned off (ctrl-shift-h) and was surprised to find no loading screen. The screen just froze, vibrated a bit, flickered a bit, and then showed the next area.

I'd never run across that before. I only did now because taking my rit through tyria i've been playing with the interface off as much as possible (enjoying looking around more - somehow i never did with my original tyrian chars. There's some great views).

Only tested in Riverside province --> Twin serpent lakes and back as that's where i happen to be but i assume it's universal.

Is this common knowledge? I just never saw it mentioned before anyway. Not that it's any use. I don't think it's faster or anything. But i suppose it looks kinda better continuity-wise, not having a loading screen suddenly popping up.

Now only if we can stop the stupid intro movies in HA and GvG.

I'm so used to automatically moving my mouse to the skip button i think i'd get rly confused if they did actually :S