I noticed two errors:
First when I select all your example text and run service I got popup window with error.
Second, when I have multiline selected running service produce only result for the last line...
I hacked together a solution to the wikipedia issue. v2.2.4 should be available in the next hour.
It looks like the first issue is happening with !wiki commands when run on Yosemite/Sierra (which use Ruby 2.0). There's an issue with the https/ssl connection that I tried to fix yesterday but it proved very difficult without generating CAs for it.
On the second, are you using the [text](!arg) format? Multiline searches only work with that syntax. Only single line searches can work without the bracket/paren syntax.
Remarkbox