I don't doubt many want a leystone at more convenient locations. Running to somewhere gets pretty repetitive and boring.
The primary issue is that players shouldn't have to run to Snorri and Mordris 50,000 times in their lifetime.
Fix the game so players don't have to do this. Let them move on from lower level zones.
I have played many MMOs that only has one portal in each zone and you have to run everywhere to get somewhere. But it's not such a problem because once they outgrow the zone, they don't have to do it so many times.
Y'all also have to think about the repercussion of adding leystones close to heavily contested bosses. Some times, making things easy is not the right move. Fix the real issue, rather than a band aid fix like this.
I think it's much simpler than this. I understand the point about Snorri and Mord, but i think adding a leystone where requested would put it more in line with travel times to some other bosses.
Not to mention it would make travelling to these bosses more enjoyable.
Current travel times on an +80% mount:
- Sreng: 1 min, 50 sec
Snorri: 2 min, 35 sec
Mord: 2 min, 55 sec
Travel times from suggested ley stone location:
- Sreng: 52 sec
Snorri: 47 sec
Mord: 1 min, 10 sec 
I haven't checked travel time to Gelebron as an example, but I'm sure it's not far off these times.
Also, this Carrowmore area is a bit unique in that there are 3 popular bosses in the area, fairly evenly spaced out.
I think travel time of around a minute to each is reasonable, and much better than spending 2-3 mins in the saddle.
