I'm curious if you knew this was possible and left it in as an easter egg, or potentially a way to troll the player when they realize there's no easy way back out.
Not exactly an easter egg nor trolling, but maybe something in between. I attempted that jump several times and concluded that it was either impossible (obviously not the case) or very hard to pull off, so I thought:
"Well, I think it'll be obvious enough that this should not be attempted at this point since the level is tagged as 'Easy', so if somebody wants to do it anyway as a bonus challenge, I'm not going to deny them their fun". Placing the save point at the other side could be seen both as a merciful and a troll move, though
It'd be a whole different story if it was easy to enter but impossible to leave (as it happened with
Curse of the Catacombs 
), or if this lead to a void screen. These, I cannot allow
