It's so challenging but fun! Should implement a checkpoint system, tho. 8/10
There are checkpoints everywhere =P
-At the start of every level
-The pressure plates you find during the levels
-A lot of sudo checkpoints, so you just climb up the ladders to start from the checkpoint instead of restarting from the beginning.
But if you're speaking of the command /spawnpoint, then you're right. You shouldn't really die during 90% of the levels unless the level has lava.
Most of the levels that you can actually die in, have checkpoints. Excluding stage 7 and 8 since they are pretty easy =)