I can see cause for some concern.  But I'd be more worried if they were traditional commercial banks.  VanEck and Bitwise are more to do with asset management, brokerage, etc.  Plus, they're seemingly on board with the general concept of Bitcoin and have made it a central pillar of their respective business models.  If they now rely on Bitcoin, it makes sense that they'd want to contribute to its continued development.  I'm confident the community are vigilant enough to notice if there were any sudden changes in approach or vision for Bitcoin development and would act according.  It's a potential conflict of interests and transparency should help ensure it's only ever potential.