To me, a technique is more or less defined as "A series of steps used to achieve a result". Thats what yours falls under, and so I would call it a technique, no matter how minimal effort is required.

Anyway, to answer your other questions:

1) Tell me if this actually sounds like a technique at all, and not just a mental trick that will get people lucid. - Yes, its a technique. Even Mental tricks are techniques.

2) In your opinion, does this sound like an EFFECTIVE technique, assuming you believe it qualifies as one? - Anyone who is good with Auto-Suggestion should find this one effective. I personally use Auto-Suggestion for a majority of my Lucids, so I'll give this one a go.

3) And finally, if you agreed with the previous two things, tell me: do you think I should make a tutorial on the SODILD technique? - Any new technique should have an accompanying tutorial for new users to learn how to do it, so I would suggest you write one up, even if its a basic one.