This is just my opinion but i think it's linked to the wedding vows of, 'till death do us part". They love the person so much they would die for them. That's why you see the members in near death siuations bc that's how far they would go
After rewatching your reactions about the ways to kill people, you missed one at the beginning. At 4:15 you were wondering what was in the cake, but the cause of death would've been from the gas coming out of the pipes getting ignited by the cakes candles. The "causes of death" scenes I could see were the razor blade lollipop, the falling elevator, the gas pipe explosion, electrocution, falling store sign, falling trumpet, falling off of high crane, exploding car, and almost falling into manhole.
Señorita MV shows that love is lethal/dangerous but the girls dont care and still falls in love And why white dress in the end, its because they all died
If I recall correctly, it's something about love is sweet and painful. There is a darker interpretation that they either commited suicide or died in some other way. If you find this one intresting, you guys should watch gidle's put it straight (nightmare version) queendom stage. I see you guys did the choreography reaction, but the queendom stage one is something different as it has a story with the stage. Similar in someway to this.
You're right about the razor blade in the lollipop. It signifies the danger in loving someone that one shouldn't. The more you lick on the candy, the closer you are to the blade; it's just like the more you indulge yourself in the relationship, the closer you are to the heartbreak.
It's kind of a Final Destination type video, nearly avoiding death as they go about singing the song. The theme of the video has nothing to do with the song itself. Just a different point of interest for the viewer.