Oh no, it seems many people suffered and died because of the Breach, which was a direct consequence of Solas giving Corypheus the Orb, which was a direct consequence of Solas not being powerful enough to unlock it, which was a direct consequence of him expending his energy trapping the Evanuris away, which was a direct consequence of them killing Mythal, which was a direct consequence of... a few thousand years earlier... which was a direct consequence of the Maker creating the world! Curse you, Maker, ruining things since the beginning of time!
In short: "In the beginning the world was created. This has made a lot of people very angry and has widely been regarded as a bad move."
A sophism is an argument specious and fallacious, apparently valid but actually founded on formal logic errors or linguistic ambiguities derived from an eristic attitude and intent of deliberately misleading.
Post hoc, ergo propter hoc (after this, therefore because of this)is a sophism which consists in taking as the cause what is antecedent in a temporal scale, or pretend that if an event is followed by another, then the first must be the cause of the second. Often the term is simplified post hoc.
This sophism is an error by adduction, because the temporal consequence seems to be the inherent causal relationship. The error is only to conclude in the order of events rather than take into account other factors that may exclude the relationship.
Having said that Solas is in part responsible for the Breach and there are the extreme to categorize the events within a pattern of cause-effect.