What's the purpose of letting the transaction pool to get so full to have transactions falling out of the pool, having the fees so high that we have a limit on the minimum transaction and some exchanges stopping the withdrawals because of the network congestion?
There is no purpose for any of this! None of this is ideal! The problem is a decentralized group of developers not willing to agree on a single direction. That's why we've seen several hard forks, coup attempts, trying to evolve Bitcoin to something better.
What's the reason for letting bitcoin get so distant from the whitepaper? What can we do to have it back on track?
Bitcoin hasn't drifted from the whitepaper, it's just matured and grown such that it needs to be updated to evolve with the growing demand.
We can put in different ways, the reality is that as it is right now bitcoin does not respond to the definition in the white paper. In the 1800 a horse was an advanced transportation system, today we can can't call it a transportation system anymore. And we digress about how to say it but the truth is that bitcoin does not have the requirements of the system described in the whitepaper.