Whether we are happy with release clauses isn't really the point, there will be many times where a player will not sign for us or renew his deal unless a release clause is inserted. WHat can we do? Even if there is no release clause, there might as well be one as we cannot keep a player who wishes to move on, as was the case with Guehi.
Freedom of movement is one of the key reasons clubs like ours cannot build strong sides over time, even if we don't need to sell. Any Palace manager must work with what we have at that time, and accept that we cannot promise to keep our best players. Nobody can.
All of which tilts further in favour of the likes of Iraola and Frank, who have lived all that before.