Correct. If you have a power driver's seat but no moonroof, apparently that was a factory conflict so you got either one or the other if both were ordered. I asked a Buick sales guy about back 30 years ago, and he said it was just his opinion but he thought it had to do with potential issues...
My first '87 GN was like that, loaded out bought used off the Buick dealer lot Aug/92. Contacted Buick and they sent me an options printout, something they most likely would not do today. My car was optioned with CF5 Astroroof Ventilation but conflicted with the power driver's seat, so my car...
That is an ADS Super Chip. Commonplace back in the late 1980s-90s. These chips added a little more fueling, higher boost around 16 psi, were used with a 160* thermostat, and had the stock chips' ~22* timing curve.