* Can hostfully.com identify suspicious data analysis? (no.)
* If given the chance, will Airbnb present misleading data for self-serving ends? (yes.)
* Will an already self-serving study be given an even more self-serving spin when presented by a sympathetic reporter? (yes.)
To understand what I'm talking about, consider the source cited by OP (http://hotelnewsnow.com/Articles/77191/New-Airbnb-data-sheds...). Going by that data we might be tempted to say that Airbnb is being out-competed by the hotel industry.
However, stagnant growth on the part of AirBnb seems like it would have been widely reported. And yet it hasn't. Googling we find a seemingly contradictory datapoint: Airbnb's revenue is up 89% this year (http://www.bizjournals.com/sanfrancisco/news/2016/09/01/airb...).
How can Airbnb's revenue have almost doubled while still losing market share across the board?
Option 1. They didn't lose market share across the board, and instead cherry picked non-representative markets for their 13 region hotel comparison.
Option 2. They lost large numbers of low-margin bookings across the board, while gaining (taking market share from hotels) higher margin bookings. [Note this would contradict OP's article.]
In both cases, Airbnb's data is misleading.