Are Bogey's numbers hypothetical? Bloom and his cohorts gave Story $141M for 6 years... or $23.5M per. Then they offered X a $30M extension, which would've brought his opt-IN contract to 4 years for $90M... or $22.5M per.
Not only were they insulting Bogey, they were blatantly telling him: we value the new guy more than you. Bloom's not stupid -- he studied Homer (not Whiffer)... bottom line: the Red Flops wanted Xander to refuse, opt out, and leave.
Or they arrogantly thought he'd stay at their price, since he was never shy about professing his love for Boston -- just like Jon Lester. So they never even tried to negotiate, until they ultimately offered Bogey a last-minute deal equivalent to Story's (according to Alex Speier).
Since WAR is an overall evaluator, comparisons seem fair, but even with similar values, they were and are different player types. But only one had proven he could excel in Boston, the AL East, and win two World Series rings.