As noted in the comments, you are right and this was incorrect. The verb to delight is to cause a feeling of joy or wonder. So saying "[Subject] delights..." means that the subject is causing someone else to experience joy. Here are some examples of delight used as a verb.
- The fireworks delighted the audience on New Year's.
- My young niece delights me every time I see her.
- Our fresh, local salads will delight customers.
On the other hand, as a noun, delight refers to the recipient, and often needs a preposition like in. Here are the same three sentences but with the word order and function changed so that delight is now serving as a noun:
Customers will take delight in our fresh, local salads. (see here how the subject and verb have changed, such that delight is now serving as a noun - the emotion itself).
My young niece is a delight.
The audience were filled with delight when they saw the New Year's fireworks.