The routers are likely just a bit behind on data updates.

https://maps.openrouteservice.org/#/directions/Carnarvon%20Avenue,Brooklyn%20Park,SA,Australia/Spencer%20Street,Cowandilla,SA,Australia/data/55,130,32,198,15,97,4,224,38,9,96,59,2,24,5,192,166,6,113,0,184,64,70,1,152,0,224,14,128,86,115,247,192,22,99,240,29,128,54,124,4,228,32,38,6,1,160,22,144,154,165,216,209,168,80,190,14,77,138,75,96,27,136,153,74,98,104,117,94,41,131,26,228,248,10,16,49,177,0,12,228,71,77,82,27,136,8,0,29,83,192,136,155,14,80,0,188,160,5,181,198,210,245,232,16,1,155,192,0,219,162,224,130,195,67,192,1,185,32,3,154,241,131,35,64,88,130,251,163,251,163,67,162,33,130,133,225,102,67,187,187,102,195,162,192,128,2,248,85,0