The "Zombified" in "Zombified Piglin" is inconsistent with all other zombie mobs in Minecraft, and should instead be "Zombie". 

Compare:

• Zombie Villager
• Zombie Horse
• Zombie Pigman (this mob's direct ancestor)
• Zombie Doctor (achievement)

For consistency in naming and ease of translation, either all should be "Zombified", or all should be "Zombie".  Since "Zombie" is the pre-existing and more-widely-utilized of the two, I would think it should be that.

As well, with the Zombified Piglin being the direct descendant of the Zombie Pigman, the term "Zombie Piglin" would have been the natural expectation.  I think some of the community resistance to the change was in part due to the unfamiliarity and unwieldiness of "Zombified" in comparison to the familiar "Zombie".

Plus, think of how many [collective] letters and syllables you'd be saving Minecraft players!