Personally, I think the mythos should be used as a template, or very rough outline, but trying to fit SV into it is like trying to shove a square peg into a round hole. And IMO, it actually hurts this show when it tries to fit into a mythos situation that it already veered so far away from.

To me, the first question should never be "how do we make this fit with the mythos". The first question should be "how do we try to come close to the mythos, but still respect what we've done on SV, and still respect what makes sense on SV".

Its all well and good to debate when and where Clark told Lois the truth in the almighty mythos. But NONE of those stories had this Clark and Lois, and NONE of those stories had a Clark and Lois that developed into a relationship the way SV's Clark and Lois has. NONE of them.

NO other version of Clark Kent had a "I can't tell you my secret, but I want to be with you, but I can't be honest with you, but I can't let you go" relationship that lasted 7 years, like our Clark Kent did.  You can't just pretend his relationship with Lana didn't happen.   You just can't ignore that and pretend it doesn't impact who our Clark is today. At least it should. I'm reasonably sure that no one here would be satisfied if someone asked Clark why he wasn't telling Lois the truth about himself, and he said "Well, because she doesn't know in the mythos at this point".  And if Clark can't use that reason on the show, then its not a good reason.   Clark has to have a reason that makes sense in the context of his storyline, and considering his history, and his past relationships. If that doesn't matter, then what on SV DOES matter?  This is supposed to be a whole show about Clark Kent, his experiances, and how that leads him to who he will become.  Right? 

SV show runners should get some b*lls, and fight for their version of this love story. They should be asking themselves what makes the most sense for their versions of the characters, and how they set up the story.

If there are still "restrictions" (which, IMO, seems like a convenient excuse), then they should've thought of that before beginning the story.

I don't really care when, or where Lois found out in other versions. I'm not currently reading, or watching, any of those. I need to know why our Clark Kent, here and now, would begin a romantic relationship with our Lois Lane, hear and now, but conceal his true self from her. I need to know how he thinks this is going to work, and why he would go down this road again. I need to know how delicate topics, i.e. sex, are going to be handled. Since "its mythos" makes no sense at all for an excuse for our characters in SV, then I'm going to need for this show to get a bit more creative, and come up with some real, understandable, articulated reasons that don't come off as lame contrivance.

Clark tried a relationship with lies. It was miserable for him, and for the object of his affection too much of the time. Why is he doing it again? That's the bottom line. And "Its Mythos!" is not a reason. Its a crutch.