Thank you so much for the feedback! That’s actually a really great point about the layout, and I will definitely consider adjusting it to make it more intuitive.
To clarify the exact order of the step: you first discard all the Omens fulfilled from the previous turn, and then you can draft and place new Omens (up to a maximum of 3). So you are absolutely right, those fulfilled Omens only stay on the board and take effect for exactly one round of play before being cleared out.