Question

ずんだもち

下の英文についで質問です！
Althoughの意味が、その節自体ではなく前の節にかかっているのですが、文法的にはありなのでしょうか？

11
10 a change in the quality or number of one's social relationships. The
death of a close friend or relative, or a divorce or separation, are
extreme examples, although even relatively minor upheavals can also
create profound distress.
13
12
(134 words)