There are other units which require a 7 minute turnaround time.
And other units that need 3 minutes.
Some would come from the Regatta, some would come from Local Government and some would come from national government.
None of whom will be remotely interested in this. Hence why it will not happen.
Can you imagine the headlines, or indeed the comments on these pages, if a Government decided to invest tens of millions of pounds in a project just so that a comparatively few people, who will generally be comparatively very wealthy, have a slightly less cramped and more frequent journey to Henley once a year so they can buy their pints of Pimms at £17 a go?