I believe it's been well established that Rob's ownership of the nazi domains was primarily due to Epik's stupid expiration system that involves the domain being placed into Epik's account so they can sell it for a profit after it expires. I agree that this makes Rob's ownership of those domains less bad, but it does not absolve him of all responsibility. For starters, putting his name as the registrant on every domain that expired at Epik was an incredibly stupid decision on his part. Moreover, the reason he got those domains is because Epik is a fan favourite of nazis and all kinds of other unsavory people that Epik was clearly going out of their way to market to. Epik even gave Parler technical advice after they got yanked from AWS.
For what it's worth, Rob Monster also had his name on the registrant contact for hitlerdidnothingwrong dot com for a while. It's not a good look, even if it wasn't really his domain. He needs to seriously reconsider his commitment to putting his name on everything like a wannabe Donald Trump because it's making him look like an asshat right now.