Good find 
Bottom line, never read the datasheet before you try something :lol:
Carrying the SCK and DATA signal parallel and in close proximity (e.g. in wires) for more than 10cm may result in cross talk and loss of communication.
I guess it’s pretty safe. With the serial comm protocol and checksum system I doubt you can actually get wrong values in the data, if there’s a problem I think it will be garbage data that the ISS will reject.