Kakashi usdes against Deidara his first Kamui of the manga

. He's getting from time to time better in dealing with his Kamui. And it does not matter wheter Susanoos arrows flew straight to Kakashi, it's arrows are to fast to dodge from it but not fast enough for his Kamui. Jiraiya is just not fast enough to dodge Kamui. That he has knowledge about Kakashis new ability is just theory. How Jiraiya will dodge Kamui? It takes only a second untill Kakashi open a dimensional hole onto Jiraiya, also to absorb him. Kamui is just to fast, like Amaterasu. There's no way for Jiraiya to dodge it.
Don't waste your time with stuff like "Jiraiya has experience, Jiraiya probably has knowledge about Kamui and Kakashi looked up to Jiraiya as a respected elder.
Just bring a confirmed ability of Jiraiya to avoid Kakashis now very pronounced Kamui. We are not at the time, were Kakashi has problems by absorbing Deidara away. Now he's able to absorb things like Susanoos arrows, Asuras rocked. He even tried himself on Bijudamas.