I suppose first of all we have to ask if big clubs genuinely are interested. This summer the interest perhaps looks a bit more real to me, but he's been linked with big clubs for quite a while now and it has sometimes smelled a bit like him having a good agent who knows how to play the game.
Secondly, if the interest is real, are they interested in him because they think he has the potential to be a high quality member of the first team, or if they want to have him around to take up a homegrown spot and fill in in a variety of different positions when needed.
I'm not making a judgment either way as it's impossible for any of us to know until he signs for someone else and we get the chance to see how they use him. But at this stage I feel like it's a bit simplistic to dismiss the opinion of Arsenal fans who don't rate him on the basis of some rumours.