Why are summoning stones outside of instances?

Before i start can you please use paragraphs make it hard to read…

On topic with the amount of dungeons and raids we have it would take a lot to move them. Also do not forget some stones serve more than one dungeon/raid.

Not only that but some instances would need a rework at the entrance for a stone to be fitted in.

Not really the answer i expected from an MvP seems very harsh and blunt and tbh a bit trollish.