"X is dead, long live Y", is a meme. I wouldn't read into it past, "I'm switching from X to Y".
Charles VII would have probably not been amused by this historic statement being called a meme :-D
I tend to think of memes as simply more attached to the current era. Sure our current era is devolving into madness, but I like to believe in a world with beautiful memes and healthier societies.
Even if he weren't, I feel like this would be pretty far down on the list, considering that the intervening centuries have also seen the fall of the French monarchy...