Yes. The degree to which people change their lives through religion is a result of suggestion and community-based support. Nothing supernatural.
I read the article by the way.
It's a great little article. Only thing it doesn't consider is all evidence available for God...it just casually reasons it away on the grounds of opinion...that means nothing in terms of truth. I've read and been confronted with this type of stuff before.
It's grossly inaccurate and subjectively based.
I've had personal, physical encounters with the Holy Spirit, angels and demons. I've known others that have heard the audible voice of God (my father has). I've known others that have encountered both angels and demons (both physical manifestations and the overwhelming, tangible presence of Jesus Christ and demonic forces).
You won't believe a word of this. You'll say prove it. I am the proof....my life changed is proof. You'll dismiss that as insufficient and nothing.
Requiring evidence of the supernatural to be validated under strict scientific terms that apply to the natural is a category mistake.
Simply classifying it as "suggestion" doesn't add anything but subjectivity. There's nothing factual in that. There's nothing universal in that.
When validating God's existence and who he is you do so according to his terms as outlined in his inspired scripture, you listen to testimonies of believers, you seek the Lord in prayer.
We have historical proof of Jesus' life and ministry, archeological proof of biblical people and places, manuscript proof of biblical reliability via the field of textual criticism, multiple independent attestations that agree closely on the facts of Jesus Christ's life/death/resurrection, proof via logic (God as source of logic, TAG argument, Kalam Cosmological argument), extra-biblical accounts that validate the historicity of Jesus Christ's ministry/death/resurrection, the ministry and death of Jesus' apostles after his ascension, the fulfillment of biblical prophecy spanning hundreds of years between initial prophecy and fulfillment, the intelligent design of the universe, the utter improbability of the intricate structure of the universe without a designer and the testimonial evidence of millions and millions of Christ's followers today. This isn't an exhaustive list either.
The problem with evidence is that our presuppositions and subjectivity often determine our judgment of evidence even prior to reviewing said evidence (that is if it's ever reviewed).
If you enter the Christian worldview then you're addressing the divine, sovereign creator of all and he's not required by or subject to any demands. In order to understand him we must be willing to submit to his terms and forgo our own.