(EDIT: Never mind, you addressed this in your previous post. I really don't agree with the theory you're putting forward, though. I suppose it's because you're only using secondary evidence to proof something very specific instead of primary evidence. If what you're saying is really true then why isn't that spelled clearly out in the games somewhere? Surely IGA or whoever is responsible for the story must have realized people who may not have played all of the games are not aware of all the story details.
There's actually a good reason. The game formula.
You'll notice a trend amongst all IGA Castlevanias that the story is basically entirely between the lines. You can never make full sense of one game alone without having played the others.
Hell, IGA couldn't explain on SotN ITSELF about the Demon Realm or Alucard's "holy bloodline" descendence. IGA only finally revealed about the Evil Intent of Dracula on Aria, 6 years after SotN. SotN itself needs lore from other games to make sense. OoE needs lore from a source that is not even a GAME to know why there's no Belmonts. Truth is they cannot show the entire lore on one game everytime they want to do something with it.
This is why there are people like us who can have discussions like this.
My guess, which I believe is rather plausible, is that IGA/his team didn't want to cram too many plot points on their games, since Castlevania is known for gameplay, not story, and this would make the plot too bloated to follow. This was the reason he didn't add certain plot points on SotN, if I'm not mistaken. It appears to me they started relying on you knowing the story up until this point to fully grasp the rules of the current game's plot as a way to not make the plot cumbersome. And people will say "Castlevania has no story".
The seal didn't break until he died thought, didn't it? Why would it matter where he would lock away Dracula's body if the seal is broken by killing him? It wouldn't matter because then he would be dead.
Except that he literally has more than one reason to make reviving Dracula as hard as possible: His two "daughters".
He's considering his daughters to be reincarnated as Stella and Loretta. HIM dying and THEM dying is different, as seen by PoR's bad ending. He's willing to give up on his entire plan if it means saving them.
If he dies, alright. But, would he make it so easy to revive Dracula after his death knowing this could mean Dracula consuming the souls of those who he believes to be his daughters? Because he has no guarantee he'd die AFTER them. So, making Dracula so easy to revive in case he dies is a sure way to get his daughters killed (by his own stupidity, no less!). And, as PoR shows about his mindset, having them die is not on Brauner's plans.
So, again, I have a hard time believing Brauner would be this stupid and unable to predict one step ahead.