"immature" confusion :(

[dartsofpleasure]

Okay, this has been bothering me for a really long time. In the opening lyrics, Ayu says:

bokura wa sonna ni mo ooku no koto nado
nozondari wa shiteinani yo zutto

Now, to me, this means "We don't desire all that much" but I read the great masa's translation which says it means "We've never wanted so much at any time". And since there is such a huge discrepency between what I thought is was and what masa says it is, can someone tell me why it means that?