This isn't a response to any particular reply. I just want to outline some Singularity theory, what this ability is, what is its intended use, what is its practical and situational use, and effects on gameplay. This may be heady or redundant, but my attempt is to add some depth to the discussion here.
What is singularity? Singularity is a combination of a crowd control and a trap. When singularity is used, it establishes an area on the battlefield that no enemy (save YMIR's) can enter without being rendered incapable of moving through and incapable of firing so long as they are in the area. In addition, if enemies have no defenses, it picks up the enemy, entraps them in a biotic sheath, and launches them a distance. While trapped in this sheath, it creates the possibility of a massive aoe damage attack on that particular enemy.
What is its intended use? To give adepts the abilities to distract a enemy or groups of enemies on the battlefield for a period of time to make up for the class' lower powered weapon abilities. It also creates a unique opportunity to create a chain of biotic attacks using other squadmates. It's also supposed to look really cool and show off how enemies can go flying through the air.
What is it's practical use? It is effective against controlling a single enemy or groups of packed enemies. It also, because of the enemy's AI establishes no-go points on the map for enemies, forcing enemies out of cover or positions because singularity is near.
a) Certain enemies, husks and geth hunters etc., follow an attack AI of advancing only, so the singularity works in stopping them from advancing through a certain point on the map.

Advanced ranged enemies, like the Collector Assassin, will attempt to flee the singularity be retreating to the nearest cover; however if the singularity is established near or on top of cover, the enemy may attempt to flee by trying to enter that now unavailable cover, simply because it is the closest
c) common ranged enemies act as though singularity doesn't exist, and will attempt to enter the spot according to its normal pathing
Singularities utility is limited for performing combo damage powers because of the few times swarms of enemies attack the player, yet can be useful and should be performed if possible.
Effect on gameplay: The utility of singularity makes the player want to use its power more often than the other adept abilities. Experience on harder difficulties impresses upon the player that survivability is more important than killing speed, so singularity is selected more often on the nearest threat group or the most dangerous enemy to insure that the player and/or her/his allies survive. In order for kill speeds to improve while insuring survivability, the adept must use her/his allies more extensively than more aggressive classes like the vanguard, soldier, and infiltrator.
Thoughts?