[snoopyjoe]

.strm files are just shortcuts to your media. Similar to how playlist files work. The Netflix Addon has some work around in the settings where it probably save the resume time in the link inside the .strm file. But that time is passed to the addon, via the link, which looks for the resume time before playing a file. So it would work in addons where the resume time is saved for that media inside the addon, but if the addon is not expecting the resume time for playback then it will just play the media from the beginning.