Coliseum needs more income for f2p

I am a highly active f2p player and have been very engaged in the new coliseum stuff and have been enjoying very much. However a major problem was further complicated today in that I am out of era currency. I have spent 2000-2400 crystals on currency packs already and now that new ventress is unlocked I am 80k era currency behind fully using my upgrade materials on her and my other era characters. I feel your original math is off on the free era currency provided and an adjustment is needed to ensure f2p players can remain competitive. 

Thanks. 

Long time f2p player and guild leader.