there are actually cries for help. Many players who main low-tier characters plead on Twitter for them to receive buffs. Some were popular high-tiers in previous games and their loyalists would rather weather the nerfs than let go.
As a result, the original characters from Fire Emblem Heroes have begun gaining popularity (I will avoid re-introducing them individually here), and we have been able to continually enhance in-game content. Also, we were finally able to add Beast type units in January 2019...