According to the Jeopardy site, the writers check at least two reliable sources for each clue. They seem to have slipped up on the pronunciation of “daub.”
Typos and misspelled words in materials produced by public entities are not trivial. Government offices, universities, and trustworthy publications should represent the highest standards of the culture. In US culture, that includes painstaking attention to standard English usage.
As long as some readers remain who are acquainted with the basic rules of Standard English, grammatical errors in newspapers and other publications raise credibility issues.
Until our remaining irregular verbs become regularized, perhaps elementary teachers could take the time to teach the past participle forms, and professional writers and speakers could make an effort to review them.