No problem. It’s a hardware limitation. DirectX11 can only address up to 16 textures in a particular program (material shader). Hence if you share the coordinates you can double/triple/etc up on those coordinates and apply them across ‘more’ samplers.
Generally speaking, you want your BaseColor, Normal-maps, etc to all be lined up so it’s not really an ‘expense’ in that regard, changing the address-mode.
ref: Texture samplers limitation is still present in 4.9? - #4 by DanielW