The problem is that timing is much less important when it comes to filamenting in a home system than when it is about fleeing from chasing hostiles.
To me it seems the time-sensitive situation should be leading when it comes to balance decisions on this topic.
30 seconds extra is a huge factor while combat probing.
On the other hand waiting 30 seconds longer in a home system when activating a filament peacefully is barely noticable. They’ll live.
Please reconsider this (wrongfully) shortened duration and thanks in advance for bringing it up.