Most other brokers WILL NOT allow this. When I applied for options Schwab had a broker call me and make sure I knew about all the risks involved for the level I applied for.
RH was also down a couple times in March, which lost me a good amount of money. A week is a VERY long time if you're playing short-term options. There's also other issues where they were holding customer shares in margin when they had cash to cover, and when they've allowed customers to leverage 5k -> 1M of positions (a huge nono).
The conclusion here is that RH is a toy broker following the mantra of move fast and breaks things. Good if you're casually investing, but for options and serious investing with real amounts of cash it's worth getting a broker that is serious at providing reliable service.