Automatic "mark as watched" with grace period

Hi,

Setup: Plex + Infuse as Client + tracking watched state with Trakt.
Continous playback on for TV shows.

1) Question

It happens quite often, that I watch an episode of a TV show until the end and the next episode starts automatically. Until here, that is the expected behaviour.
Sometimes I quickly change my mind (you know: "I should rather go to bed, 3 hours of sleep will not be good for tomorrows day at work ...") and stop the playback.
This usually gets the episode, that only played for a few seconds, marked as watched.

Is this the intended behaviour?
I would rather like to to see something like: If less than 10% or x minutes of a movie/episode was played, so not mark it as watched.
As well as: If total runtime - 10% was watched, mark it as watched (as I dont watch the credits except I expect some after-credits scene.

2) Problem

Some paused playbacks, that I can definately see, using Plex as a client, are not being displayed as currently playing using Infuse. Starting these movies in Infuse will not prompt for "continue at xx:xx:xx" but instantly start from the beginning.
Is this a known issue?
(I only use Infuse for Playback, the Plex Client was only used to verify this issue)