Super Sentai in South Korea (Power Rangers?)

It's quite confusing for South Korea to air Super Sentai series.All of series were aired in Super Sentai format,but the title was Power Rangers.I saw a Korean shop in Ayala Alabang selling stuffs of Go-onger but in different titles.



I can't blame the Toei about these.But it's too stupid,and I would prefer if they used the Japanese name of the series into English name ex.Tensou Sentai Goseiger into Angel Rangers or whatever.South Koreans love this series,but need to fix the title to breaking the confusing title.