This is more a PR stunt than anything.
Remember Ireland still runs Miami. Everything is coded.
So they leak they will go after Peytnon. This accomplishes several goals.
1. It says through official channels to Manning. We want you if Indy doesn't. Puts us on his radar.
2. It breeds excitement amongst the fan base.
3. It provides a smoke screen to all other negotiations.
If Miami openly says it will go hard after Flynn then this will make it more likely that the Pack will try to franchise him for picks.
By openly saying that Manning(who is a mirage right now since there is no guarrantee he plays) is their top target they try and cool the market for Flynn. Everyone is looking at Miami to go after Flynn because of the obvious connection to Philbin.