"However, we have considerable evidence about the harmful effects of 2G and 3G. Little is known the effects of exposure to 4G, a 10-year-old technology, because governments have been remiss in funding this research." This sounds like bullshit. What were there changes between 3G and LTE that would make it more dangerous? More efficient use of spectrum?
The towers are also spread more densely, with smaller cells and lower power, which also lowers peak exposure levels. For devices, just the fact they only have to transmit a short distance to a local tower tells you about the energy.
You are probably getting more cancer risk for stress hormones caused by the Instagram/Twitter on your phone than the electric field it generates, no matter how 'patterned' or polarised the field is.