Yeah that theory dumb as fukk along with Rhaegal getting healed by salt water. Drogon gotta do it dolo, just like when his brothers were chained up. Honestly if Dany hadnt chained up Viserion and Rhaegal way back they may of been strong enough and not got caught up like they did.The fact people are really expecting a bunch of extra dragons born from Drogon to join the fight in the next episode is proof that a lot of got fans are dumb, and will be mad at the show when it doesn’t happen
Now its drogon time to shine
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