they can't get that little thing right, it makes
me wonder about the accuracy of the rest of the article.
Same logic?
If a 1000-word article had 50 misspelled words, would you then say that it was a pretty accurate because it was 95% correctly spelled?
No, you'd be horrified. Things like spelling, grammar, and basic facts (the capital of a country, USG policy on gifts, etc.) should be close to 100% correct. That's a lower bound to be taken seriously.