The signs aren't 'suspension' signs, as in suspending a parking place, they are supposed to be 'appropriate traffic signs displayed in accordance with the [Traffic Signs etc] regulations' - see para. 2 of the TTRO.
The TTRO amends the provisions of the principal order, The Newham(Waiting and Loading Restriction) Order 2011. This is amended 'as if for the Road purposes of the application of Article 5(1)[to the streets listed in the Schedule of the temporary order] ..the prescribed hours were at any time'.
There is no 'at any time restriction' in the road(preventing parking and waiting), so have the correct signs been erected?
IMO, there is nothing in what's written on the sign or which could be deduced therefrom which supports the imposition of a temporary as opposed to 'at any time' waiting and loading restriction on the specified day.
IMO, make sure you add contravention did not occur to your reps. And this is not based on guesswork, it's simply reading their order which is displayed on the board.