There is a difference between what is and what might be. According to the IRS.gov website:
Fair enough to say, it is a mess of rules that are difficult to find, let alone determine what is currently in effect, proposed and in discussion, enacted but delayed implementation, etc. My head hurts when going thru this subject. I do need to get this worked out before the end of the year. I may just surrender, close out the relatively small inherited IRA and call it done. maybe that is the IRS's intended action.
It's convoluted.
Yes, the IRS website is of course correct when they say that Roth IRAs are subject to the same RMD rules as traditional IRAs.
But the RMD rules for traditional IRAs say that the new owner is only subject to RMDs if the original owner died after their RBD. Otherwise, the new owner is not subject to RMDs.
Since Roth IRAs don't have RBDs, the original owner never dies after their (nonexistent) RBD. Therefore, the new owner is never subject to RMDs.
The above is at least true for my family's situation, which just involves able bodied people over 18 in three generations (my Dad, my sisters and I, and the grandkids). There may be other scenarios where the above is not true, but for what I consider to be a typical case, it is true.
Oh, and the quoted part of the IRS website also mentions one of the five year rules - that rule doesn't apply in our case because pretty much everyone in my family has had Roth IRAs for longer than that.
I'm not exactly sure why the law and regulations in this area are so convoluted. That's probably a discussion for another day and perhaps another forum as it might veer into politics.
Good luck to you in navigating it all.