My guess is that they just opted to make a simpler piece of the track to showcase that they now offer it.Looks like lift track only? Straight, and unlike RMC open for drainage, riveted and not welded, angles that would make curves more complex to make. Is that rubber sheets on the surface? To allow metal wheels which transition to steel-faced wood track (for proper wood coaster low friction). Their dueling coaster scale model looks so weird with big metal structures with a wood frame on top of that. Just getting rid of the middleman.
The very first piece of RMC steel tracks -- Ibox, Raptor, T-rex -- displayed all featured complex curves.
I hope this isn't the end of new GCI wooden coasters.