You have substituted the authors' words with your own interpretation of the results, which is both reductive and inaccurate.
Doing a re-read I'd agree the latter part of my statement is a bit of an exaggeration, but based on how the paper defined the categories, Gc and Ga having the most meaningful impact overall still seems a fair takeaway. Though if you'd like to call my labels for those categories reductive, that's fair.