Tellraw effect spread

/tellraw @a [{"color":"red","text":"5"},"3","1"] results in red 531, not red 5 and normal 31

[BEFORE EDIT]

Run

    summon area_effect_cloud ~ ~ ~ {CustomName:"

{\"color\":\"red\",\"text\":\"2\"}

"}

    tellraw @a [{"selector":"@e[type=area_effect_cloud]"},"3"]

Expected:

A red 2 and a default color 3, like what tellraw @a ["",{"selector":"@e[type=area_effect_cloud]"},"3"] do

Actual:

Both 2 and 3 are red, and mouse hovering 3 show info about the aec