No I don't think its a major expense either or, more importantly, a long process.
If I suddenly said I want to put 40 million into the club but I want loan notes it could be organised pretty quickly. Yes you need a board meeting and you'd need to get them together but you wouldn't need...
Would a company go to the expense and bother of doing this just "in case" someone comes along who wants them? OK so presumably it isn't a massive time consuming job, so surely they would only do this if they thought there was a reasonable chance of a new investor.
If someone suddenly comes out...