For sure. If they are listed as SATA-capable in one location and not listed as SATA-capable in another location then the potential customer has no way to decide which location is correct and which location is incorrect.
So that particular specification is not very meaningful. It either triggers a pre-sales enquiry or the customer puts more value in per time, and couldn’t be bothered making that enquiry.
To be honest, I am not sure why you would get a good spec, relatively expensive, laptop and an SSD and then slow the computer as a whole right down by using the SATA interface - but that’s just me.
At the low end of disk capacity there isn’t even much price difference.
(My gripe was with the number of slots, not the nature of them.)