I definitely jumped on the Rolling Thunder bandwagon as soon as I saw someone play it against me and was shocked! I don't follow the Discord or discussions elsewhere so your post is the first I've seen about it, but it absolutely was a warrior slugfest this weekend! Most decks are also leaning heavily on an early draw of Enduring Shield to dominate the early board.
I do lose to decks that develop faster than mine if I have a poor draw, but I don't believe anyone has overcome after the thunder rolls successfully! I had to screencap the one game where my opponent did manage to sleep my board a couple turns in a row and delay the end, but the thunder just kept building the whole time!
I managed to climb to the top of Mythic this weekend playing the Death deck listed above. I beat war 3 out of 4 times. Even if Rolling Thunder unfolds, I just wipe them all. Still number one on the leaderboard. I played rolling thunder for a little bit just to get the hang of what can counter it. I have not seen a good Deception, Light, Nature or Magic deck that can do something about it.... yet.