Yes ,went through it twice in September. And yes it is totally bonkers.
I didn't time it but 25 mins is probably about right. I've also still got the small blood blister on my left palm from trapping it in the folding handle mechanism on one of the winding wheels.
I also had the thought of sacrificing a key and let the waiting motorists get some exercise - just to protest/show how stupid it is. The thing is as traffic starts to build you naturally try to speed up to minimise their inconvenience. Or at least I do - I'm not bolshy enough. It certainly gave me a work out. I was breathing heavy for a good couple of minutes after. My wife would probably have taken twice as long to do the bridge.
When we went through there was a 'security'? person sat in a van by the bridge, who came out to advise me how to use the bridge properly the first time we went through. I'm not sure if this the only function of this person or they are also providing security for the development site (but work doesn't seem to have started on that yet).