Why is this and can/should I change this?

The "scaleFactor=2, multiplier=2" is fine and is what should be output on startup. You should be running magic with "-rcfile /path/to/sky130A.magicrc" which will result in the additional output

Sourcing design .magicrc for technology sky130A ...
2 Magic internal units = 1 Lambda

and later,

Scaled tech values by 2 / 1 to match internal grid scaling

The one thing that I do not know is how klayout reads a

.mag

file and whether or not it understands internal scaling (the

magscale

line) correctly. Or maybe there is a setting for unit scaling in klayout when reading a

.mag

file?