Since when has catching wild animals in small balls which clearly must act as some sort of hyperspace wormhole portal thing (since clearly, a pokemon weighing 100's of pounds couldn't fit inside an orb the size of a young child's fist and then be carried around effortlessly) and then using said animals for battles has never been weird. Pokemon has, as a series, right from the beginning exploring ideas that are either impossible or improbable and even ideas which have become actualities, such as cloning , DNA splicing (which occurs in labs, although in a much less dramitic form then literally fusing two beings into one), alternate universes, wormholes ETC, all wrapped up as a seemingly simple "children's" game.
And If I haven't messed with your head enough, think about this. Taking what we know about our universe and how we perceive it, its reasonable to say the universe was created by the big bang. However this event has an infinitesimally small probability of occurring, something like catching a trillion shiny pokemon in a row. An event which, theoretically, given enough time, will end up occurring. However, this event created space time, making said event basically impossible, yet clearly it happened as here I am typing this. So basically, we exist because in impossible event occurred before time even existed for it to occur during. Yet this is entirely unknowable, since our understanding is limited by our perception. In actuality, its possible that none of this really exists, OR the was a different form of time that WE can't perceive, which was what allowed the big bang to occur. Or maybe gamefreak is right and Arceus created everything.
Has your brain exploded yet?
There are a lot more strange and weird things then pokemon. Like people. There is nobody alive that truly understands everyone 100%, yet lots of people think that they do. Go figure.
Am I supposed to say something here?