Germanics retained aspects of their original religion no different to Iranics but they still lost most of it. Christmas is said to have Germanic origins and is celebrated today. No different to Nowruz among Iranics today, keep in mind that Nowruz is much much more Iranic than Christmas is Germanic. Also, Iranic religions still survive among a minority of Iranic groups (Yazdanism & Zoroastrianism) whereas no Germanic religion survives (excluding neo-pagan LARPers). It's pretty bold to claim it's completely disappeared among Iranics but completely unchanged among Germanics. What unchanged aspects of folklore and customs continually exist among Germanics but not Iranics?

