Although the SRR MV isn't canon to TSS, it's extremely heavy with TSS symbolism, as is the recent non-canon concert trailer.
Btw I find it interesting how much TSS reference this mv has. Usually they do hint to it but this could pass as a TSS video, its so clearly story related.
I did seen some people say that their mvs have a separate storyline from a non magical world. If that would be true they should have continued where GBGB Jpn left off. But since they keep teasing us with upcoming Japanese comeback i think they will continue that story for the Japanese SRR.