https://forums.galaxy-of-heroes.starwars.ea.com/discussion/191583/the-logray-problem/p1
I guess you clearly missed this thread that discusses the same issue and has 178 responses. In summary; Logray has been farmable in the guild store for a long time, if you haven't farmed him that's on you.
CG has already added additional places to farm Wicket and Logray, it's called using crystals ;)
CG shouldn't have to add more easier to farm locations for these characters simply because you want them to.
This is a game of resource management afterall. Part of the challenge is who to farm and when.