There was no need to just do this for show. Most members of the public don't care about submarine deals. It doesn't make their government more popular.
Nahh… from what I’ve read, Australia had made it abundantly clear they were pulling out of the French deal. Maybe France was pissed they were excluded, but the “angry” was entirely for show.
The public may not care about submarine deals but France certainly cares about how they are perceived on the world stage.
There was no need to just do this for show. Most members of the public don't care about submarine deals. It doesn't make their government more popular.