I am not so familiar with Robinhood but I am aware that this now a very popular exchange platform and from time to time find its way into news be it positive or negative. I used to have its app in my phone but I deleted it since I understand it got no legal standing here in my country. Now, I am sure that its staking program can be a good opportunity for many to enter and make more money compared to traditional investment vehicles. Since it is launching in Europe, I can see that it can be purposely avoiding the USA market so as not to entangle itself with SEC who see staking programs as selling securities. At any rate, good luck to Robinhood.
I am also not a user of Robinhood but recently saw a documentary video of it, like how two friends tried hard to raise funds for this, at first their motive was to give an exchange free of commissions, and the idea was so unique at that time, according to documentary, no such platform exists at that time, due to the uniqueness of idea, they were not getting any funds, but after trying again and again, they got it, and those investors not only give funds but made there idea more better by sharing more information.
And now I see this news, I am shocked to see from the start, they did not came up with such feature, although its a good thing that they did not, as you already aforementioned that, SEC don't go easy on staking based platforms. I think these Robinhood team is going very slow and steady and they can literally win the race as well.