Objectively, yes. It means to consume excessive or plentiful amounts of something, and 23% of Ireland’s electricity generation capability is objectively an excessive and plentiful amount.

Objectively no, 23% of nothing is nothing. Ireland has no industry. Their grid is smaller than a major city's grid. That this is 23% says a lot more about the size of the Irish grid and their lack of industry than it does about how much energy a datacenter uses.

The characterization as “excessive” is subjective. If you disagree, what are your objective criteria for making that claim? You fundamentally can’t give a correct answer to that, because it requires defining a threshold, and that’s subjective.

If people seriously think claims like this are “objective”, I weep for our collective understanding of reality.