水巷的“終於”如果用英文eventually來表達，也許就好解釋了。
“終於”在英文裏，大約可以對應兩個詞eventually和finally。網上查了下詞典，
eventually：in the end, especially after a long time or a lot of effort, problems, etc.
例句1：Although she had been ill for a long time, it still came as a shock when she eventually died.
例句2：It might take him ages but he'll do it eventually.
finally：（1）after a long time or some difficulty（方注：這點和eventually相同）
例句1：We finally got home at midnight.
例句2：After months of looking he finally found a job.
（2）used especially at the beginning of a sentence to introduce the last point or idea
例句：Finally, I'd like to thank everyone for coming this evening.
（3）in a way that will not be changed
例句：The plan hasn't been finally approved.
初讀水巷的那篇文章，結句覺得熟悉，想了一下，是迅哥筆法。我猜測，水巷和晴空都是熟讀魯迅的，孔乙己結尾：
“自此以後，又長久沒有看見孔乙己。到了年關，掌櫃取下粉板說，“孔乙己還欠十九個錢呢！”到第二年的端午，又說“孔乙己還欠十九個錢呢！”到中秋可是沒有說，再到年關也沒有看見他。
我到現在終於沒有見——大約孔乙己的確死了。”
這裏“終於”大概是finally的意思。
個人認為，水巷的“終於”用得沒錯（如果她是表達in the end, especially after a lot of effort, problems, etc.），但和前麵的記敘對比度太大，較突兀，讓人產生作者冷漠的感覺。這點我和晴空的感受相同。
（作者到底啥原因沒去不知道，這隻是從讀者的角度揣測）
