Strictly speaking, the amount would not matter. Comms is comms.
For example, the smallest technical projects I have delivered are of a value of c£2m and one of these was to a firm of 40,000 staff (it is fair to say small project values like this are usually delivered to say 10,000-20,000 people). This means each user has a stake of £50. Less than I actually pledged FD. My business has an open book to all stakeholders except where data protection or security is an issue. Yes, any user can log onto my firm's extranet site for their project and see whatever there is to see, should they choose to, so long as the client agrees with this ethos (most love it). Many users do not choose to look, but many do take an interest. It's not our ethos to deprive those who are interested just because some are not.
I have a friend who is a project manager who delivers small technical projects. She regularly delivers to one firm with only 1500 staff, projects sometimes as tiny £30-£50k. But nonetheless, each of these users with their paltry £30 (and less) stake get comms and her ethos is still, "customer is king". Understandably, she is well respected and never out of work.
Communication is all, the fiscal amount of the stake is meaningless.
Those who do not wish for more comms from FD simply don't look at those comms. To actively oppose increased comms is merely being the dog in a manger.