Endermen do not teleport to the snow layer

Summary:

In a snowy biome where everything is covered with snow, endermen will not teleport (if there are no non-snowy areas)

Steps to Reproduce:

1. Find a snow biome.

2. Summon Endermen.

3. Make the endermen teleport (for example, spill water).

Observed Results:

Endermen take damage, but do not teleport.

Expected Results:

The Endermen teleport.

Video:

Note:
This also does not fit the Java version where the endermen teleport to the snow biome.