Of COURSE Autothrusters are worth more than the 2 points you pay for them. It's a bloody fix card. Guess what? TIE/X1 and Integrated Astromech are too cheap for their game effect, too. Interceptors need Autothrusters to be even halfway viable in the era of primary turrets and ordnance, and everything else that can take them is either overpriced, has another keenly-priced option competing for its mod slot or is a 2-red-dice tank for who's trading attacking punch for defensive stoutness*.
The one outlier is The Inquisitor, but his whole entire deal is that he's awesome at R3 and vulnerable at R1. And he's supremely vulnerable to every PS9+ pilot in the game unless you want to severely hurt his capabilities by ditching PTL.
* - Or in the case of the Punisher, all three.
