Hi! I'm also confused by what I see in the article. It appears to be an error.
When the verb 'to direct' has a direct object and an indirect object, we use the prepositions 'to' or 'at.' It is more common to use 'to.' We use 'at' with examples of a literal direction, for example 'the shot was directed at the target.'
In the phrase 'direct someone's attention to something', attention is a direct object and something is an indirect object. In this and other common expressions with the verb 'direct,' you will normally use the preposition 'to.'
Hope this is helpful! Send me a message if you have any questions.
Regards,
Lee