There are absolutely plenty of raids where Life Dew kept things going significantly more than the other support moves.
Or working in tandem with them!
It's all about reading the situation and the raid. Obviously if a reset + buff just happened then you need that debuff reapplied asap because you'll risk a kill snowball situation and other raids have no time for anything else but another -1 on something already at -3 (even -2) vs using Life Dew that turn to top everyone up, or to get you out of kill range with Recover, can absolutely save a raid.
Or working in tandem with them!
It's all about reading the situation and the raid. Obviously if a reset + buff just happened then you need that debuff reapplied asap because you'll risk a kill snowball situation and other raids have no time for anything else but another -1 on something already at -3 (even -2) vs using Life Dew that turn to top everyone up, or to get you out of kill range with Recover, can absolutely save a raid.