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.
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.
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.