I have an Egyptian temple in play:

After a player fails a control check, that player may commit foundations in their card pool as if they were in their staging area. During the End Phase, any foundations in that player's card pool committed this way remain committed when they are moved to their staging area.

If I commit a bunch of foundations in my card pool and then destroy my own temple, during the end phase do they still come down committed? The way the ability reads is that it has one effect which is "After a player fails a control check, that player may commit foundations in their card pool as if they were in their staging area" and then the rest is a clause that happens during the end phase. If its not there to happen during the end phase does it still happen?

I mean since the ability is independent of other cards, what if the last card i play is another temple. It comes in and destroys the first. Does the effect still happen.

Additionally since the cards are committed anyways, is there a particular reason they would not come down in this state? I'm not to up on my tourney rules this late, is that something that happens when a card is added to the staging area (coming into play ready) or is it just the case that we have never had a card with this particular ability before.

being that it says "Any cards commited this way" as opposed to "as long as this card is in play" the effect should be floating independent of the temple.

Each foundation you commit in your card pool sets up a floating effect that at the end of turn causes them to drop down commited. I think the temple is only relevant at the time you commit the foundation.

each time you commit a card in your card pool for this effect it sets up a floating condition for the foundation. regardless of what happens to the egyptian temple afterwards the effect remains