Holy Spirit: Swirling Everywhere?

Christianity Today, in A Wind that Swirls Everywhere, discusses Pentecostal scholar Amos Yong's Pneumatology. Dr. Yong is head of the Ph.D. program in renewal studies at Regent University School of Divinity in Virginia.

Apparently, Dr. Yong posits that it is possible that the Holy Spirit is active not only among Christians of all denominations but also among believers of non-Christian world religions.

According to the article, Dr. Yong's central thesis is that, "because the Spirit of God is universally active in creation and new creation, 'the religions of the world, like everything else that exists, are providentially sustained by the Spirit of God for divine purposes.' Where most Pentecostals see the devil's work, Yong sees the Spirit's. Concretely, that means Christians should be open to learning from and being enriched by the Spirit's work in world religions."

Is this merely opening the door to syncretism and pluralism? Tell me what you think.

“But when the Helper comes, whom I will send to you from the Father, the Spirit of truth, who proceeds from the Father, he will bear witness about me." [not Buddha, Mohammed] (John 15:26)