Both the previous and this illustration, middle of a day in ~June, the weather benign and neither shows what's behind that wall…
That’s all clear in the full planning application though, this is just a web article. Behind the outboard wall is a relatively wide promenade with the usual recurve units. There may be wind driven spray up there at footbridge level, but in such conditions there’s still going to be spray all over the open platforms anyway?
(Beats me why they couldn’t dig an underpass with lifts that could come up inside the buildings.)
Paul