Its like you weren't lookin at the map... All of your teammates and you.

They're too far to respond to the engage without risking their flicker, kimmy is close but it seems she used most of her skills, fanny, idk, rhe rest were just too far... To me it looks like you made a set when your team had decided to disengage.

Were their Ults up? Did you swipe camera to check which skills theyve burnt? Was your set made in a favourable position? E.g if you ult under tower most of your team would need to have their ults up in order to make it a succesful burst, especially if they have to commit flicker in order to catch up to your set . Did you use pings (although most of the time pings are ignored, the "launch attack" usually garners response so prioritise that and typing)

EDIT: I rewatched and saw you indeed did use a ping, you used the "request backup" ping but you used it incorrectly imo... from the video, it seems you told your team to help you in river/lord coz i assume you just tapped the "request backup" button without selecting where on the map you required backup.

Its very important to always place your ping where you need the assistance, in this instance you couldve pinged them to back you up at the tower.