Since the NEM devs never disappointed us, I highly doubt that NEM's value will decrease in the near future but rather we could face the fact that a funding worth of 5 million XEM could be soon equal to 5 million USD!
I am hopeful that you are correct and that 5 NEM is worth 5 million, but even if that is the case. We need innovation to attain such lofty goals. These massive funds were set aside for this very purpose. I don't see the benefit in keeping them tied up.
More important questions were list above. Such as:
How does this increase the value of NEM?
How will the community benefit?
Will this broaden the potential adoption of NEM? etc etc etc
Questions like these are more important than the question of whether or not to use the funds, IMO.