Well, my main issue with this (and almost every new event out there) is how it excludes newer players. Admittedly I got into the ships game a bit late, but even if did earlier I wouldn't have 5 rebels ships at 5*. Not even 5 rebel ships unlocked!
I farmed Phoenix ships to 5*, since I'd gear up their pilots for Thrawn and TB so it was a good deal. Wiggs seemed like mandatory for a lot of game modes so I have them and their ships ready. The 5th ship though....
Which player would spend resources on Bistan and his ship, when you need to acquire and upgrade so many others (zeta challenge)? Cassian's ship only recently got farmable via TB in a very limited way. With this update we finally got it in a more farmable place.
Nevertheless, 4 days is nowhere near enough time to 5* it, unless you have stacks of cantina currency (which, again, new players won't have).
CLS, TB, BB-8 now this... The gap between older and newer players gets bigger by the day. Say what you will about new players competing only with new players in arenas. I'm getting tired of new content being released and me not be able to even participate, let alone finish through and through (CLS, BB-8, Chimera).
A selection of 5 out of 6 ships is extremely limited, for the way ships have been "farmable" till now. Make the requirements Light side this time, and I'd be happy (even though I still wouldn't get it since I don't have a 5th light side ship).
Also keep in mind, when I'm saying "new" players, I mean people (like me) who are playing for almost a year now (hardly new, in other terms).