Sometimes God says “a catestrophe will happen” but it does not happen. It is analogous as if one says “you owe me $10” then this does not make the lender obliged to request the money, he can cancel this whenever he wishes. God said through Jona that Ninevia will be destroyed but it wasn’t! No reason to assume that the same can’t happen with Apocalypse.
See my book End of Gospel and my blogs on how negative aspects of Apocalypse and the rest of Gospel can be canceled. It is worth to read that book even for the only reason to know how Apocalypse can be canceled.