Just an update regarding to this:
This is the right github for it and there is already an ongoing issue discussion about it. https://github.com/osmlab/editor-layer-index/issues/602

And to be able to still use LINZ layers, you just need to register with LDS and put your own API key in the custom layer.

http://tiles-a.data-cdn.linz.govt.nz/services;key=YOUR_API_KEY/tiles/v4/set=4702/EPSG:3857/{z}/{x}/{y}.png

But to be fair the ESRI clarity uses the same imagery it’s just not as sharp. So that’s as good as replacemnt for this layer.

To get the Topo layer:

http://tiles-a.data-cdn.linz.govt.nz/services;key=YOUR_API_KEY/tiles/v4/layer=2343/EPSG:3857/{zoom}/{x}/{y}.png