@atomo
well, you could have drunk cat also, which made the blood spatter even more obvious.
I used my medallion and had 0 issues following the blood trail, the only "problem" was that your medallion 'shake' had a cooldown, and so you kind of had to just stop/start the whole way waiting for the cd to reset.
(this section below is more of a general comment than talking to anyone specifically)
the whole issue with the witcher senses i see is not the "easy" factor of it, i like the idea of having to follow footsteps and track a creature, and i don't even mind if the tracking is fairly linear because it'll still feel like you're engaged in the actual act of tracking even if a "game system" is doing most of the legwork.
The problem is all the additional and conflicting features like the quest icon & direction arrow.
Take johnny for example, a much better solution would be to have the map display just a "general area" where he can be, like make it a really, really large area. Then you have to use your witcher senses, figure out which of the footprints on the ground might match the creature and follow them. Perhaps you guess wrong and it leads you to some creature that you then have to fight, or perhaps you get it right and you end up at johnny's first go.
However in that situation there's no quest icon which tells you precisely where to go, there's no directional arrow pointing you in the right direction regardless, you are purely relying on the witcher senses and allowing that mechanic to truly shine. Why would i even bother activating the senses if there's a exclamation mark telling me exactly where johnny is and a directional arrow pointing me to the precise location anyway?
Either don't bother with this kind of "batman vision" stuff completely, or leave its implementation very simple like it was in tw2 (highlighting loot-table items and places of power) or alternatively
trust your system completely and revolve lots of the games quest direction and discovery around its use, reducing directional arrows and precise quest locations to an absolute minimum. Either solution is fine, but not this over-exaggerated mix we see from the demos.