We know that Satoshi's vision is one of Bitcoin as Money; nothing else.
From the "Bitcoin p2p e-cash paper":
Smart contract, smart property, autonomous agents, distributed markets will be a staple of the blockchain technology whether you like it or not and sidechains are the ideal and arguably most natural way to implement these.
Fine, you're free to do whatever you want. Just don't force the spvp onto the rest of us.
The SPVP allows for potentially more secure application of those schemes that will reinforce the integrity of the ledger and the network effect.
Any other implementation of these schemes can be considered more risky to Bitcoin.
Step back for a moment and look at what you're advocating from a 50000 ft level.
Separating the unit from the Blockchain, it's main source of security. I don't care that it could possibly be used for experimentation.
Step back for a moment from your delusion for a moment and realize that SPVP is not unique in its ability to create this separation and that native mechanisms that exist already will leverage this functionality whether or not SPVP is implemented.
These federated models will gain considerable tractions once they are properly implemented and so I suggest you get with the program and reconsider your stance because your opposition to that idea is futile. Moreover, the concern should not be whether the unit is separated from the blockchain but whether the value stored can be assigned to a different chain and secured enough so that the integrity of the original ledger is preserved.
There are more realistic and rational concerns to be having than this one.