[+] I'm agnostic on this. Pinterest just raised, what, $450 million dollars? That's presumably not intended to buy the world's biggest vat of chocolate pudding.
It used to be that it did in fact take millions of VC just to get startups off the ground (70s, 80s, 90s). We could go back there. Would it be better for the ecosystem? Would employees have a net gain, or would there be fewer early stage companies & jobs? I don't know, but these are the macroeconomic questions to consider.
If the cash cost of running experiments goes way up, that may very well mean going back to the old way of doing things, where you essentially had to jump straight to VC money just to get off the ground.
http://www.kalzumeus.com/2014/11/07/doing-business-in-japan/
(I could pull an answer to your question out of this -- hint, search the page for a dollar sign -- but if you're reading "out of curiosity" you should just get some coffee or something and read the whole glorious thing, because the number is useless without the context, and the context is very different from the USA.)
Maybe this would force VC companies to be more selective in who they fund, vs "fund 100 and hope for 1 to be the next google".
IMO, no. The difference between founder and employee #1 is still too large, even though the risk is not significantly higher.
Assume there are two founders, splitting 50/50, then there's a 10% employee option pool, so the founders have 45% each. Moving from 1 -> 3% is not enough incentive, but moving from 1->10% might be.
Welcome to running a business. You aren't guaranteed anything. If you can't survive, you die. Tough. That's life.
Perhaps you can argue that startup equity grants should be higher. Would hiring issues be resolved if the average equity grant tripled? Would more talented people in the U.S. pursue Silicon Valley careers if they got 3% instead of 1% to be an early employee?
I can't prove it, but I'd conjecture it would only have a modest effect. The notion of "expected value" of equity is problematic. It's not like it's simply a 3X stronger offer. The bigger issue is whether the company will be worth anything at all.