The issue is that the changed everything up again. Both Maul and Cassian events had these materials for rewards and now Rotta event does not. The complete radio silence on the issue doesn't help things either. One can debate wheter Rotta is ftp accessible or not. I would have to look more in depth at the marquee structure, but I think you need to at least buy a pack to get them to 4*. Most players should have enough crystal income to do that without spending actual cash.
I can understand the anger at buying the pass, and still not being able to advance past level 110 without spending cash. I am beginning to wonder if buying the big pack pull is worth it if we are going to be stuck at g12 +3 going forward. The last two cycles I was able to get everyone into low relics with only buying a few credit packs, which were a waste last time due to the massive make good. This time, I have been tracking everything at the end of each two week cycle. So far, I have only purchased two of the smaller credit packs during the R5 weeks. I'm at 110/98/95/91/90/90. I guess I'm on track to get everyone to at least 110 assuming the other 110+ material is not made available. That is pretty disappointing based on the last two cycles.
Overall, I don't think I really like the era set up. It is really preventing me from spending crystals elsewhere (like on relic material). That is partially based on wanted to have a certain crystal cushion in case they release a new meta capital ship. However, buying the 12 pack pulls for everything really puts a dent in my stash that I can barely get back in each two week cycle. Further, I hate having seven toons dumped at once and have to go through modding everyone at once. That is very time consuming.