Arbitrary or contrived percentages.
l think l am on the same wavelength as you regarding AS, and always trust my ears for those final adjustments.
l take perfect round percentages, or conveniently rounded off 100s of millions of dollars/pounds offered up by politicians in the same flawed way. To quantify difficult situations or actions with such claims can look highly questionable. The Wally 20% figure sounds like a rough approximation, or is it a definite fact, that is what it is?
l admit l know nothing first hand about the Wally thing, but amusingly it sounds a bit like my ice skating, which l am a right wally at. So in that regard, l’m in the anti-skating camp too.

