We as people, have different financial goals and experiencing different situations.
Some are looking for high risks, the others for stability.

Any plan - is a plan, it is not the right place to get a financial advise neither.
It all depends on you and your status. If you are looking to build long-term wealth or speculating on short-term earning.

In my personal opinion, the 2% rule is applied more for traditional markets, when volatility is low.

You've chosen to adopt a young technology, that it is still developed.
It is like your 5 years old son is making a mess and painting the walls, and you are willing to send him directly to a psycho-treatment.
Don't cut the wings so fast, maybe it will be an art