How are the two different? Either you use the explanations given or replace them with your own. Why does material you've decided not to use matter?Replacing logical default explanations with something that better fits my campaing/tastes, I like.
Having to come up with far fetched explanations for mechanics that weren't meant to have one in the first place, I don't.
And why assume the replacements have to be far-fetched? My rapidly dashed-off examples were genre appropriate, no more far-fetched than any explanation of how faeries, umm, teleport.
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