So instead of holding restricted stock in the startup, everyone would hold restricted stock in the holding company? Where's the simplification? You have the same accounting for numbers of shares held and vesting schedules, and exactly the same number of beneficial owners of restricted stock.
Might provide tax benefits? Can you explain?
Seems your can table would be the same in either case, too; one line that reads, "Restricted stock" with disclosure of what's vested.
Tell me what I'm missing.