I'd like to say Oda is better than that but who knows at this point. If it was other authors that definitely would be true
(cough Kubo and Kishimoto especially) BUT Shanks is far too important to Luffy and the story for that.
Oda has been embracing offscreens too much post TS though worryingly and what he's doing with the former Warlords, Sabo, Boa, Vivi etc isn't helping. Even Absalom being killed offscreen too imo and whatever is happening with Moria and Blackbeard now too.
But if Oda actually does offscreen Shanks and RHP, I will completely drop and disassociate with OP permanently. I will even burn all my OP merchandise too. Normally I chastise people for burning their merchandise but in this instance, I would allow myself to be a hypocrite as I've waited almost 2 decades to see Shanks and his crew in action and if they're just hype tools, just there to be offscreened, I will gladly walk away from OP and never look back again. Same applies to Mihawk too.