Who knows, but that recipe led to plenty of frustration in the community as more of us migrate to Mac’s for Unix capability under the hood while still maintaining the corporate application support from business suite applications.
plist conventions for its preferences, is another matter.
Gerald touched on the interoperability problems with Mac OS X and it sounded as if there was some issues with libpcap, Mac and Wireshark. AppZapper supposedly cleans up other stuff for apps, including preferences, when you uninstall them whether it knows about Wireshark, which follows UNX dotfile/dotdirectory conventions rather than NeXTStEP/OS X.
Packet capture utility are vital for developers, network and systems engineers alike. Seems like the WireShark install on Mac OS X has always been a total disaster for me.