According to Bible scripture, any Believer can lay hands and expect healing. I'm sure Tebow believes this even though laiying on of hands seems to not be a huge part of Baptist theology. Prayer for healing certainly is though. His faith is strong as is his vitality, so I would imagine whether one wants to consider it spiritual or not, healing force can come through him. Actually there is are qualitative differences in spiritual healing frequency and human, biosphere, or qi healing, or other "energy healing" frequencies
I'm sure he also believes laying on of hands is something available to any Christian and would insist he is not special in that. One of the factors though in the amount flowing through seems to be the relative vitality of the person who is the conduit, and his deep spiritual devotion and his physical vitality coupled with his compassionate heart put him in an optimal position to be very effective. In this regard he is special.though not unique. (My hypothesis about vitality factor is based on results of spiritual healers when they were young vs as they aged-less vitality- or became less healthy)
It's like a stronger conduit can handle more of the force. Also it is important to have the ability to get out of the way and let the power come through without trying to direct it. In other words, drop your ego , which I think Tebow can do. When I say power, I'm not really talking about something that feels like force or a zap, but is very unique and gentle. I'm avoiding religious/christian terminology as much as possible because not everyone can make that leap in acceptance. And having said all this, it doesn't even need to come through one person to another, but can directly fill the recipient, with or without contact.
We are mulit dimensional beings in a multi dimensional creation.. I know spiritual healing is real and God heals, that Christian healing feels different than say, Native American or other shamanic healing, different qualities) , and also know it is qualitatively different than other effective forms of healing that are "energetic methods". like cranio sacral therapy, acupuncture, polarity therapy, othobionomy,, reiki, and multiple other healing techniques which can be very very effective. Some people think the concept of spiritual source of healing is crap. . Even if they do, the fact is the multi dimensionality of the universe opens up the possibility for many occurrences, including healing, that don't fit into 3 space thinking or 3 space paradigms.
Edit: Just want to add, that some of the therapies I lumped as energy therapies actually are very physiologically based, like on proprioceptors, and crainio sacral pump mechanism and rhythm, so I probably should have called them light contact therapies rather than energy therapies. I know this is only relevant to other practitioners, but wanted to correct the error.