There is an outfit called Airports Council International Europe (ACI Europe), a trade body for airport operators, whose key objective is:
"Cohesion between airports and industry partners in order to improve the public perception of civil aviation and in particular to ensure a clear understanding of the social and economic benefits of environmentally sustainable air service and the conditions necessary for the delivery of these benefits."
In 2002, they commissioned York Aviation to produce a report entitled "The social and economic impact of airports in Europe". York Aviation describe themselves as:
"A specialist firm of air transport consultants providing a complete consultancy service for the airports business, including aviation policy advice, economic impact assessment, air traffic forecasting, and specialist advice on airport capacity assessment and planning."
York Aviation is an associate member of ACI Europe.
Job forecasts based on ten year old statistics, from a tiny sample, applied to an "aspirational" growth projection, seven years into the future. I think raising Thanet's hopes on the strength of this is simply cruel.