I'm pretty skeptical of the negative attention Robinhood is receiving. It seems like the entities who actually acted in bad faith, the ones who attempted illegal shorts, are trying to divert attention. Like someone else said, Robinhood is just the fall guy here.
They do deserve a lot of negative attention for running a brokerage in a way that invited a lot of risk-ignorant retail traders to instantly trade into leveraged positions for which they should never have been qualified in the first place. Robinhood has the valuation it does because it brought leveraged day trading to the masses. As someone who worked at a brokerage and designed trading tools, leveraged day trading isn't for the masses.