I've seen a sprinkling of comments saying variations of "Indiana absolutely pasted this WIU team last year 77-3 and Illinois will do the same", just wanted to reply with a couple things:
(1) Yes, this Illinois team is talented enough that it could (in optimal play) probably beat an FCS team that badly. Heck, it could even do it to WIU this week!
(2) Indiana was absolutely sending a message last season. They didn't know they had a playoff team that week but wanted to change the national narrative.
(3) Illinois has playoff aspirations right now (in optimal play) and they don't need to change the national narrative. Therefore their motivation and strategic choices will likely be different.
(4) People predicting Illinois to not cover the spread are likely not making a big statement about how they view the 2025 Illinois football team related to 2024 Indiana.