So its not a bet, its a holdover cash infusion until the IPO, and is not exactly risky given how mature and well-capitalized the company is at this point.
The only real bet is that they'll be able to IPO before a market downturn, which seems pretty safe, I have yet to see anyone put forth and truly plausible triggers for another large global recession - there are no debt and enforcement chains I can see that would drag the system under again. But I'm not a financial expert, just an armchair economist, and if I knew what would trigger the next recession I wouldn't be posting here ;)