I'm not so sure taking a goal back home having lost is that good a deal for away teams anymore. Especially against top teams, the top team will most likely score against you at your place anyway. Top teams usually score. A draw is a good result, a 2-2 would surely make Spurs faveourite, but surely not as it stands.
Juve have been quite poor yet still had the best chances, Spurs starting like that is unforgivable, Davies has offered width in attack but his quality and assuredness has left much to be desired. The way they have come back into the game is commendable though, but it's not enough for them yet I don't think.