That's a grey area, that you would probably win if this hypothetical were litigated. Their parameters are broad and vague, so I could easily see a claim that it is unfairly giving you a better game play than others. Nothing about their parameters mentions multiplayer, so one would assume it apply's to all play styles.
I'm the extremely unlikely scenario this came to some kind of litigation the determining factor would probably be the question of whether there is anyway for players to compare single player gameplay at all in a reasonable way? If they have a leader board for single player or anything like that, including even a social media a tracking single player stats then I think it's possible it is determined to be giving an unfair advantage.

corkyskog@sh.itjust.works
@corkyskog@sh.itjust.works
A forum for discussing and organizing recreational softball and baseball games and leagues in the greater Halifax area.
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Borderlands 2 is temporarily free to grab on Steam, as it continues to be review bombed for non-Randy Pitchford tweet reasons -
Borderlands 2 is temporarily free to grab on Steam, as it continues to be review bombed for non-Randy Pitchford tweet reasonsCan you give an example? Purely for academic intrigue... Not advisement purposes. -
Borderlands 2 is temporarily free to grab on Steam, as it continues to be review bombed for non-Randy Pitchford tweet reasonsAdditionally. It's outlaying the parameters and then it goes on to give some common examples so a rational actor can get a good idea behind the meaning of the parameters. It's not an exhaustive list of all activities that could violate their parameters.