It's also quite possible that the media has simply overestimated the market for free agents in the age of the salary cap and analytics. Teams have a lot of examples of "being stupid" with contracts, and as teams get squeezed by the luxury tax, fewer opportunities to dump a Stanton/Cano contract on another team.
It'll be interesting to see the money they get, last year people were projecting numbers for Arrieta and Darvish that weren't reached. My suspicion is the AAV declines drastically if they insist on a ten year contract, especially with opt out clauses (i.e. teams won't take on that kind of risk), but may be substantial on a five year deal.
The only deal this year that struck me as reckless was the Corbin contract.