Is a leader a "unit"?

[Poor Yorek]

The rules language is not entirely consistent.  For example, (9.0) Active units with Bombardment Fire values may attack hexes containing spotted enemy units within range. All enemy units in the target hex are affected. Presumably, the use of "units" here is not intended to exclude leaders in the hex being affected.  Note that (14.1) makes the distinction: When a combat result requires a morale check, the owning player rolls two dice for each affected unit and/or leader and adds any applicable modifier to the result. 

Leaders share many of the same capabilities and vulnerabilities of "units" and yet are also clearly distinct in many ways.  Perhaps what ought to have been done is to define a term that would apply when referring to common features (movement; morale; etc.) and have other terms that are used when making distinctions (e.g. a leader cannot "control" a hex or doesn't count as a unit exited) just as, for example, the unit category is divided up into combat and transport.  

Lest anyone have a spittle-flecked-nutty, I'm simply pointing out the potential ambiguity with rules sets where terms that have both a definitional meaning and a more common-speak meaning become conflated.