Quality of Life
In actual use, neither sort - base hero or current equip - is good.
These problems will only get worse when SGG eventually introduces costumes for HotM and Season 3 heroes.
The basic problem is the hero roster GUI is not designed for war, and tournaments.
The hero roster GUI was a rush job even several years ago.
If you only have 1x Tyrum, you can sort by name.
Even adding the base hero team power to the costume team power has issues because base hero team power and costume team power are not uniform.
Many, if not all, of the issues could be solved by nicknames for heroes, a decent sort function, and other QoL issues that have been on the want list forever.
Given the Devs’ solution to Bane 3/8 3* 3.50 was not an automatic 8/8 3* 3.50, the fact you even need to level costumes, and at one point in Beta costume special skills were identical to base hero special skills, I would conclude that the Devs do not care about heroes using this loophole.
So I expect them not to close the loophole, but not make it easier for players using the loophole.
(NEW filters for Hero Roster and leveling Heroes – with sample UI design mockups)
([Suggestion] Personal hero nicknames, search, and recent filter for hero roster)