It is Star Wars Galaxy of Heroes, nor is it Star Wars Galaxy of Villains and Heroes. Star Wars Galaxy of Villains is completely dismissed XD
Ever since the start of swgoh, it has been light side tilted.
While DS gets some love too, DS always has fewer, harder and more cost intensive nodes. You need full zeta‘d teams to be weaker as rebel teams with fewer gear/zetas etc in comparison.
One thing I never understood, rebels have 2 still strong standing yet not meta defining combos of 2 units:
Wedge & Biggs, Chirut & Baze those 2 toon team, each for itself have been strong and defining.
What does the empire in comparison have? Always full teams to get synergies, every single lost toon hurts all.
I don’t get why not at least Siths got similar strong combos as they canonically even have the rule of 2. a master and an apprentice. Palpatine and Vader should have massive impact and synergies as per date hardest to obtain duo. (When I started Vaders was achievement only; might have been in dailies too don’t remember) and palp is 7* monthly (should be nowadays).
FO & Resistance are more balanced in that regard (yet again, LS is easier to obtain and needs less zetas to be really strong. ZFinn has been enough to make a massive impact, whereas FO needs lots to be competative.