Well currently without an ship battles to fight like cantina/light/dark...
Your stuck with ship arena and spending those shards earned on ships or zetas...
If your even earning shards in the first place you probably bought ships because the progress is so freaking slow.
So if EA wont give the players a legitimate way to earn ship blueprints then i do not see the problem with a zeta event.
Because everyone needs blueprints to lv ship to do zeta challenge, and if they toss a few zeta out will its not gonna be 20 of them so dont get your panties in a twist those of you who shelled out thousands to get zetas 1st.
Your not gonna lose anything.