It should be noted that the word "resurrection" is a Greek term that does not appear in the Hebrew Scriptures.
In Greek it means the literal re-animation of the corporeal body, or as the term simply means "to stand up [again]."
The JWs use this term incorrectly because they often speak of people being "resurrected to heavenly life," and in fact you can often use that as an indicator of even an exJW sometimes.
Neither in Scripture nor mainstream Christian eschatology can you say that someone is "resurrected" to spirit life. The term and theology requires that a corporeal form is coming back to life. Spirits are generally considered to be immortal and incorporeal and therefore never need to and cannot be "resurrected." In Acts 17 some Greeks find Paul's speech laughable because he mentions the concept of "resurrection" which is contrary to the pagan view that only a spirit life awaits us after death. If the term could be applied to life after death as an immortal soul or spirit, this would not have been the reaction. But since "resurrection" refers to new life in a physical body, the Greeks found this ridiculous and unnecessary.
So JWs are actually showing how uneducated they are by using the term "resurrection" to refer to entry into heaven life.