There must always exist the freedom to make choices in the Spiritual Worlds because love can never expressed without voluntarily contributing to the relationship with Krsna (God) in a two-way reciprocal relationship.

There must always exist the ability to make choices because love can never exist without the jiva-souls voluntarily contributing to their relationship with Krsna (God) and experience loving exchanges.

Such freedom (free will) in a two-way relationship in Vaikuntha and Goloka-Vrindavana, allows loving exchanges to go on in a meaningful personal way between the jiva-souls and Krsna to be genuine and not just one-sided. 

If Krsna had complete dominance of all the jiva-soul's every thoughts and actions in a one-way mood, then how can their be genuine love? 

Such absolute control of the jiva-souls would extinguish their ability to express themselves and offer their own personal contributions, as the independent unique person they are eternally.

Only then can they experience reciprocal loving exchanges that distinguishes the jiva-souls as being alive, or being no better than dead stone.

Thank you Srila Prabhupada for these realizations.*