Apart from the fact that a fee was agreed between the clubs and he talked (directly or via his agent) to Chelsea everything else is speculation.
If he wanted Spurs that much his agent would be sorting that - not going this far down the road to Chelsea.
We'll get dribs and drabs of information over the coming weeks so might understand it more then. In the meantime all we can say is that it all seems a little bizarre.
'What if' there was a reason like stress and being unable to make a sound decision? Will we be as tolerant and understanding as we are with Lennon or will we crucify him because his 'episode of mental ill-health' was centred on Everton in the full glare of the media?
I guess it would depend on whether it comes out. In the current climate, given what the Blue family is like, and after Lennon, if he were to publicly admit he's been having issues and treatment, he would probably be quickly forgiven and offered support by nearly all. But without that, while some might speculate that is the problem, many will not likely conclude that, particularly with the club officials saying things suggesting otherwise (or at least easily interpreted as suggesting otherwise).
I think the only way out of this mess would be for someone to give a sit down interview about him. Whether that's Barkley, Moshiri, Kenwright or Koeman probably doesn't matter, as long as they were able to talk about him for a bit without the glare of live broadcast quick fire questioning (something like Football Focus interview style maybe?) which might produce clearer qualified opinions from them. But it seems unlikely this will happen, given it remains a 'live' situation. Only Barkley could do it, and if he's got issues then he's probably not going to seek the limelight. It would also assume he was getting handle on them and some help first, I would think, and who knows whether that is the case (assuming it is mental issues in the first place and he isn't just the proverbial cunt!)
Would take some powerful revelations at this point to clear it up though I think, not a two sentence reply in a press conference.