Always a tricky subject to get the right balance, and when you do, it always seems inevitable that the balance is soon lost. Having ridden people's events and done a bit of organising stuff, I can appreciate the issue from all sides of the brevet card.
Audax rides haven't really changed that much since their inception 40 years ago. But in that time, riding audaxes has probably changed quite significantly, most of that change has happened in the last 5 or 6 ish years.
So now there's bound to be a difference in apparent fit, both parties probably need to compromise and respect the others' goals if everyone is to succeed.
So what has all this got to do with bouncing controls? Well quite a lot. Bikes generally have become much lighter, and the equipment carried by most has either reduced or also got lighter (sometimes both). So cyclists have become able to cover a greater distance before needing a pitstop. So, where as a decade ago everyone stopped a control to get both proof of passage and a re-fuel. Now all most need is to obtain the former. So its probably best that the organiser accepts the fact and offers a control that fits the bill. This may take the form of the controller in a bus shelter, and advising where "lite bites" or "full breakfasts" or "food to go" can be found. Everyone wins, cyclists get proof of passage and re-fuel or not, caterers get some business and controller gets their rider list compiled.
What happens if there's no compromise, controller sits in a cafe for a couple of hours. This costs the cafe owner in terms of lost income for the space taken by the controller. The cafe owner regards non-stop person as a worthless PITA. Eventually the cafe will not be willing to support the event, result -everyone looses, but most of all anyone wishing to use the location for a control.
Of course there's the other side, where there's nothing. So the organiser needs to provide something - typically a private hall. Again everyone wins, controller gets rider head-count, riders get proof of passage and re-fuel opportunity. What happens if organiser just nails a bag of stickers to a remote tree trunk at the end of a remote lane. Riders run the risk of not finding proof of passage and validation, possibly not being able to finish ride, almost certainly not going to ride the event again - maybe not riding any future events offered by that organiser.
Then the riders have to consider the organiser, they (the organisers) spend considerable time and effort building-up and maintaining a rapport with commercial controls. Often requiring considerable investment from both parties. So riders, please don't be surprised if an organiser gets more than a little agitated if you decide to go to a location a few feet away from the official control to get your proof of passage. As DC posted up topic, no show at a control, you run the risk of no validation. And don't be surprised if the event doesn't feature in future calenders.
We all have to respect each other and be prepared to possibly compromise every so often.