Why wasn't Shayera Hol arrested?!

From Justice League No. 16 (March 2019)

After the events of Justice League No. 14-16, some fans have wondered why Shayera Hol, the current ruler of Thanagar Prime, was not arrested by the Green Lantern Corps and was allowed to continue her rule. In the Justice League issues, we were introduced to a Shayera Hol who had moved her people from the destroyed Thanagar to Thanagar Prime.