The changes do make tidal totems more attractive. But the reality is, the 2nd gold trait is achievable in about 3 weeks - 1 month of being 110 meaning you will likely have 2 gold traits by the time you make it to the first mythic raid boss if you work hard. So in reality, you are debating the paths for the purposes of 5 mans.
In 5 mans, I would say right path easily beats out left path considering healing rain isn't used at all in 5 mans (or very rarely), HW+HS generally close in on 35-40% of your output (for me at least) in higher mythic+ with undulation (buffeting waves > pull of the sea here) and HST plays a bigger role in 5 mans. That and Tidal Totems is still god awful in 5 mans even with the changes given its small radius, frequent movement involved, etc. So personally, I am still sticking with bottom path to begin for dungeons and what-not.
Either way, it still isn't going to make any meaningful difference.
But I suspect Tidal totems will beat out Decree on Nythendra (guaranteed, was actually close to 5% of my output on mythic testing and this was before the fix a few months ago), Ursoc (depending on who you riptide), and Xavius (depending on how hard you stack). For dragons, the spider boss, cenarius, and il'gynoth there was just too much movement and not enough stacking and I think at most tidal totems will be just equivalent to Decree. But again, I don't see how we won't have 2 gold traits by this point so I don't even get the point of trying to figure it out too much hah.
For nighthold, it won't matter since we will probably be nearing (or will have reached) our 3rd gold artifact by the time it comes out.