Politics and the English language

From this morning’s Observer:

Theresa May is facing a growing revolt among party donors, with one senior backer warning that the Tories will be “decimated” at an election unless the prime minister ends her indecision and shows leadership.

With mounting accusations across the party that May is dithering over Brexit and lacking an inspiring domestic agenda, Sir John Hall, the former owner of Newcastle United, told the Observer that the prime minister was facing a make-or-break period of her premiership. wipeout

If one is being pedantic (and one is) this doesn’t sound like much of a threat. Losing a tenth of her MPs in an election would not be good news for Mrs May, but it wouldn’t be the wipeout that Sir John is envisaging. Could it be that he has fallen prey to the dreaded Etymological fallacy?