The market’s risen since Harper’s deal and there’s zero percent chance Boras will let a guy who could reset the market take an early extension. Boras turns 72 in November, so who knows how long he wants to do this, but as long as he is, Wood will be a free agent in 2031.
Since he is a Boras client I agree there's little chance he'd advise Wood to make this deal but it makes sense for both sides. Wood would make more money during his pre-free agent years and make a substantial salary the first four years of being a free agent. He would have the security in case something happened. Without the deal as stated he'd probably make around $50 million prior to being a free agent. How much above $50 per year would he make the first 4 years of free agency? Probably not enough, if any, to offset the security he would have if he did do the deal. Then when he's a free agent he'd be able to negotiate a deal that would be for the rest of his career at whatever the market is at that time.
It's probably less advantageous to the Nats but the talent is obviously there and they would have him locked up until he's 32 years old.
The deal would also make sense for Boras. As you say he's no spring chicken. He'll be 78 by the time Wood is a free agent. He'd get his money now and could retire with the Wood money before 78 years old. Tomorrow is promised to no old geaser.
I'm thinking I should go into the baseball agent business.