Let me then rephrase my hypothesis (of course technically it can't be a theory): any sufficiently novel initial idea, whether good or bad in our perception at first glance, can be brought to success by amending and developing it.

So, according to your hypothesis, guaranteed success requires only two things: novelty and hard work.

Are you serious?

I am serious about one thing: there is no such thing as bad idea. Any of the Google's discontinued products weren't a failure. It's Google's product management who failed, not the products.