It is apparent that you've misunderstood the term "Tradition" in the sense used in the Gospels. Seeing that both are of Divine origin the one cannot "hold...back" the other. Indeed as a boat will not get as far in the water with one oar, the second oar far from holding back the progress of the boat, helps it reach its destination much more smoothly.
The whole Gospel can but advance with Tradition.
My example of “holding back” comes from personal experience. The leaders of ECUSA cry that “border crossings” by African archbishops are a gross violation of the tradition and historic order of the Church. Those border crossings, however, are necessary to advance the Gospel, because, as we all know, ECUSA sure isn’t doing it.
My parish walked off its property and became part of the Church of Rwanda. If we were to strictly follow tradition, we would have to have remained in submission to the heterodoxies and heresies of ECUSA.