Heroic Spirits are also recorded and stored as data recorded from humanity's history within the Moon Cell, but they are identical to those within the Throne

Source: wiki

When I said "same" I meant the records are not different from another whether they're from the throne or the Mooncell. It's like having two video cameras who record with the same quality.

I'm not "confusing" the term HS with servant, I only use servant out of habit but I know the records from the Throne are the actual heroic spirits and the ones from the Mooncell too when you unlock their true form.

Gil in the Throne doesn't have a form yet that's why he can't act like he wants, only when he gets summoned by the throne maybe xD As for the Mooncell... That was mainly BB's fault I would say (but yeah that ending was priceless lol). I think you're a bit biased if you claim the 'Throne' is endlessly superior because it isn't otherwise it would have an influence in CCC when BB was about to destroy mankind but it didn't... Instead it was our protagonist and the heroic spirit she picked who had to stop her and they come from the Mooncell.

If anything it rather shows the Mooncell is as powerful as the throne for even being able to summon heroic spirits.