It's not hard at all to understand why people like ABBA's music. It has good strong melodies, people can sing along to it, it has good chord progressions, great instrumental arrangements, fantastic bass parts, and is wholesome feel-good music.
It's good that any member of ABBA go to different regions even though I live in London. Perhaps one day, they will do a Supertrooper and go to Glasgow . Anthony UK.
I think Frida would stray away from the usual answer and would have the “ balls “ to answer the question why ABBA is still huge today : because their music is exceptionally good. Period.