She did mention it, but they were probably told not to get too close for their COVID protocol. And watching her speech, she didn't seem stifled at all, she is so enthusiastic.
"We don't know from history what Wilbur and Orville did after their first successful flight, but I imagine the two brothers hugged each other. Well, you know I'm hugging you virtually. And, you guys who haven't been with me for 4, 5, 6 years...if it weren't for COVID-19 you guys don't have a chance of me (I think she was saying they wouldn't be able to stop her from hugging them) but I cannot give you a hug, so this is all I can do. I'm giving you the hugs."