About Bonney (Chapter 1118 spoilers)

Am I missing something or Bonney just got a Deus ex Machina??

Bonney is like:

Am i dueling against Zoro? Sure, let's distort a future where I trained swordsmanship every single day of my life.

Against Akuma no Mis? Make me train Armament instead.

The only downside that I can see, are things that are inheritated through birth, like Hakushoku and modified DNA, like Sanji for example.

But who cares? Garp has no Hakushoku and still is one of the strongest ones because of his strong Armament. So she can just distort a future where she intensively trained Armament for 50 years or something just like Garp did.