The simple answer to this is that guides on these texts have not been requested and/or written. The e-notes editors respond to demand: we answer questions posed and produce assignments and teaching guides on texts requested by e-notes users. The request can come from students or education professionals. If you require specific detail, I suggest you ask a specific question on a text; if you requre a teaching guide I advise that you contact Scott Locklear to add your requested text(s) to the assignment lists.
As editors we are always ready to meet demand. Ask away - I am sure that some of my esteemed colleagues will be able to help you.