It's an interesting choice to posture that it's a simple military maneuver to open the strait, but the supposedly strongest naval power is unable or unwilling to do so. If it were simple, they'd do it; if the strait wasn't important at all, they wouldn't talk about it.

Not sure about the rhetorical strategy with acknowledging that it's important, but complaining it's still closed. Better optics would be to just not say anything at all, but he can't even manage that.