It can just as easily be swept aside by arguing that none of those are Caesar's doing, but rather the more subversive elements within the Legion, like Vulpes. Ulysses himself explained that Vulpes was the singular architect of many of the Legion's campaigns which involved manipulation, not Caesar. Saying that Caesar lies because his subordinate, Vulpes lies is like saying Caesar lost the first Battle of Hoover Dam. He didn't, Graham did. But we choose to carry the burden upward the chain of command, so we still pin the blame on Caesar, when he had no part in the direct strategizing of the battle whatsoever.