"But seriously, thank you for inviting me into your home."
- Susan talking to Mr. Verres about the immortal rules change as hinted (presumably) by Zeus
The next page will be Monday for behind the scenes reasons, some which actually are comic (and spoiler) related. I'll get into those in Monday's commentary.
As for THIS page...
Competing directly in a competition would have been breaking immortal law, yes. An immortal might have gotten away with it by perceiving their participation as some sort of guidance, but given they'd have to genuinely believe that, it would be a rare immortal who could.
Ironically, helping a mortal cheat would have been completely acceptable so long as the immortal wasn't officially on their team (unless we're counting someone on the team who would, by design, be in a role that just provided guidance).