Skeleton trap spawns too close to the player

I play on a mushroom island with two friends, where we only have unechanted iron gear. I went AFK for at most two minutes, to then realize it had started to thunder and a skeleton trap spawned right in my face, triggering immediately. Because I was AFK, the skeletons killed me and all of my items despawned because it's nearly impossible to face four skeletons with enchanted gear using only your fists.

A simple solution to this problem would be making it so that a skeleton trap can only spawn at least 24 blocks away from the player, like hostile mobs.