I don't understand why players pick Lifeline??

This thread inspired my to play a game with LL and I’ve never tried her new buffs outside of the firing range. The tactical is so much better now with the increased range but her ult is still useless except for making an unbreakable cover in open areas. I think I made some decent revives and a clutch rez with a gold bag but unfortunately didn’t grab the W for the team.