Yes a loving creator will give humans the gift of free will.
What seems odd to me though, is using free will as an explanation for how perfect creatures with perfect minds could ever commit sin.
The initiation of thoughts in the mind is actually an involuntary occurrence dictated by environmental factors. Yes with some effort you can consciously dismiss an unwholesome thought - but only after it has already arisen in your mind. And herein lies the problem: If God created man perfect why should it be possible for sinful thoughts to involuntarily pop into a perfect mind, presenting the risk of sin? This shows that there is a design flaw.
Consider this: Does God have free will? JWs and all other theists will say yes he does. Yet the bible says that it is impossible for God to lie or act unjustly - it is impossible for him to sin. Thus God as described in the bible refutes the JW teaching that it is impossible to have free will without the possibility of sin. It also highlights the fact that the God of the bible created Adam with a design flaw. For he could have made Adam to have free will coupled with the same inability to sin that he (God) has.
If man has to have the ability to sin in order for his choice to love God to have any value, then what does it say about God's love for anyone if God lacks the ability to sin?
So the arguments that JWs use to explain why free will and love necessitates the freedom to sin - those arguments are refuted by God's nature as described in the bible, a being who has free will yet is unable to sin.