Wish granted! However, they become too creative, and they are so creative that people don't understand the destruction of the wish until it becomes obsolete.
Wish granted! However you didn't mention what default textures you want in replacement of the 1.14 textures, so the textures are just missing. Seriously. Congrats.
Wish granted! But because it's illegal, you are sent to 1,000,000 years in prison for possessing homework. Out of sadness, you explode 30 years later because you had homework (and die)
Wish granted. Something good happens. You get some completely awesome cookies! But since their so delicious, you eat them all up way too quickly, and run out. You then become depressed because you will never get cookies as awesome as them again.