I'm not assuming anything. I'm trying to assess the situation from the Browns pov. Poorly, apparently.You seem to be making an assumption that giving him the ROFR tender = he isn't a priority. IMO that is a questionable assumption.
It gives them right of first refusal, so they don't necessarily lose him if another team wants him. And, as I posted previously, it is seemingly rare for tendered RFAs to be signed away by other teams.
IMO the most likely outcome is that the Browns sign him to a contract that isn't tied to his RFA tender, in which case he cannot be signed away by another team.