More 94 Ford hydraulic clutch problems

[Tom F]

My son used his power bleeder on the clutch so we pretty sure it's done correctly this time. But when Releasing clutch peddle it starts grabbing 1/2 inch from floor. When putting clutch in, it must be down to the floor to shift and then it's really hard to get it in gear.
So I decide to look at it myself, took the inspection cover off the trans, had my son put it in neutral, start engine. What I saw was with clutch all the way Out, the throwout bearing was held against the pressure plate fingers and turning (riding the clutch??). He pushed in the clutch and fingers started moving in right away. Yet with peddle all the way down and fingers depressed, there's only 1/2 of clutch.
How does this hydraulic Slave/throwout bearing suppose to work? Does the throwout bearing run all the time???? I compressed the throwout bearing against the spring: what does that do? It's spring loaded (see picture) so how does it work???