Using the 3 GB density GDDR7 chips for the slower RTX 5050 Laptop or RTX 5060 Laptop makes still less sense, than using it on the RTX 5070 Laptop. So in this regard, it's more legit.
I can't justify buying a new 8 GB VRAM GPU laptop at this point (maybe a used for 700-800), but I can a 12 GB VRAM 5060 or 5070 Laptop GPU.
RTX 5070-powered laptops launching in 2026 might get a VRAM upgrade. At least two SKUs have been spotted online with 12 GB RTX 5070 variants instead of the regular 8 GB.