lycanthropes have me confused

i have always known all lycanthropes to have 3 forms:

(i) humanoid (as in, resembling a standard humanoid race);
(ii) animal; and
(iii) hybrid (typically a humanoid body with animal head and/or other parts).

however, in 4e:

(a) every lycanthrope has a change shape ability that references only two forms: humanoid and animal--no mention of a hybrid form;
(b) every image of a lycanthrope is in hybrid form; and
(c) most of their attacks can be used in only humanoid or animal form--no mention of which can be used in hybrid form, if any.

now, i can draw my own conclusion of how this all works together, but it just seems poorly presented to me. every other shapechanger in 4e (except the jackalwere, which suffers the same issues as the lycanthropes) makes reference to every form of the creature in its stat block (e.g., lolth, yochlol, lamia, hag, etc.).

perhaps, this needs correcting.

EDIT:

lo and behold, the new encounter, "kill the messengers", has a wererat with the following information in its stat block:
__________

Change Shape (polymorph) ✦ At-Will
Effect: The wererat alters its physical form to appear as a rat, a unique human, or a hybrid creature. The form lasts until it uses change shape again or until it drops to 0 hit points (whereupon it assumes human form). The creature retains its statistics in its new form. Its clothing, armor, and possessions do not change.

Short Sword (weapon) ✦ At-Will
Requirement: The wererat must be in human or hybrid form.

Bite ✦ At-Will
Requirement: The wererat must be in rat or hybrid form.

Rat Scurry ✦ At-Will
Requirement: The wererat must be in rat form.

Speed 6, climb 4 (rat or hybrid form only).
__________

now, this is much better. nothing is implied. everything is quite clear. thank you, wotc.

well, it does leave me with one question still unanswered: does the creature's armor, and it's possessions, fall off when the creature assumes animal form? also consider that a werewolf lord is size medium in human form and size large in hybrid form. does its armor strangulate it when it increases in size or fall off when it decreases in size? if not, why not?