Perhaps. "Constellation" is particularly odd to me though. There are lots of unique lesser used words with 2 syllables instead of 4. So I'm curious why they chose it.

They were working with different constraints: Speed doesn't matter, it doesn't have to work internationally, and their alphabet is limited to A-H.

Having words of different length makes it easier to distinguish them.

Also, I have a suspicion why the article leaves out "F".