Alonso obviously adds power and the vast majority of your fictional 65 home runs, but the conversation was about Bo and isn't in a vacuum, it has the context of all that's come before it, as I suspect you know.
Bo has averaged 14 Hrs the past 3 seasons. This team is lacking in HR power. We have Roman who we're hoping can hit 20. Story may or may not hit 20 again. Abreu has averaged 18.5 a season (and will he still be here?) Apart from that we're not very threatening. We need that HR threat (which Breslow alluded to himself). Alonso will provide a large part of that (hopefully), but Bo and Alonso just gives us what Devers and Bregman were giving us and that wasn't enough. If we didn't sign Alonso but got Bregman and Bo we certainty wouldn't be thinking we'd solved our power issue.
I'd much prefer we brought in Marte. I'd probably even prefer Bregman back. But all that said, I would not turn my nose up at Bo. As I've previously stated, this team also needs players that puts the ball in play - another thing we're lacking. But if that's the only moves on the offence, I don't know if it's enough considering where we're starting from, and likely to lose one of our best offensive players in a trade of Duran/Abreu.
Don't take this the wrong way, but your analogy is a nonsense.