[MC-214642] Entering bubble columns while flying in Creative mode still plays a sound

When flying, players are completely immune to the movement effects bubble columns cause. Why does the sound still play then?

Linked issues

Can confirm. This may be inteded, but mojang decides.

Can confirm in 21w06a.

Can confirm in 21w07a.

Video attached.

Here are some steps to reproduce this issue:

Steps to Reproduce:

Make a bubble column by placing some magma blocks underwater.
Switch into creative mode.
Fly through the bubble column.
→ ❌ Notice how a sound is produced upon doing so.