Fire shaping was never really dominant. Cryoas have always been good, but with the possible exception of G1 when drayks and cryodrayks were the ONLY high level ranged attackers, magic shaping has always been a lot better than fire shaping. Vlish were broken in G3 and were also the best creation value in G2 -- nobody noticed because Parry was such an attention-getter there. And in G1, there was a good case to be made for using vlish and glaahks. In G4, of course, we all know that Wingbolts were the end of the story.
Battle shaping is very good in G5, but it isn't hands down better than the other options -- even if War Tralls are the best overall creation, the lack of ranged attackers before 5th tier means that, even if it equals fire or magic shaping for a given tier, it certainly doesn't surpass them.