An insult to the Batman and Smallville
The storyline of the entire show portrays female super heros like Supergirl and Batwoman to be far superior than Superman and Batman.
In a major crisis out of all earths they didn't find a Batman , they managed to find an evilone and kill him only to make the Batwoman standout
Bringing Arrow back .So they killed a Character only to bring him back after 15 min watch time.
That was a cheap trick or may be they are trying to make arrow stronger for the finale.