This is crazy. You are saying a man is "salty" (what does that even mean, honestly?) because he wants access to the new content he bought without having to replay all the content he has already played. He says he doesn't enjoy it, which is more than understandable - maybe he doesn't have the time to replay a game in the middle of the holiday season when seemingly dozens of other games are also coming out. Maybe he just doesn't have the time because his free time is limited because he has a family and other obligations. Maybe he simply wants to play what he has paid for without having to replay content he doesn't feel like playing.
And even if he DOES replay the content until Amelia in NG+ - he then has to realise that the DLC is much, much harder than the base game was and he is completely underleveled to play it at that point in NG+. So he either has to live with that difficulty spike (you would be about Level 70, 80 when approaching rushing through NG+ to get to Amelia and starting the DLC? Yeah, have fun fighting
like that) or he has to start leveling his character in the main game OR he has to start a new character and level him to 50, 60 and then start the DLC in NG.
None of this is ideal. I'd much rather have played the DLC in NG-mode but instead had to go for it in NG++, resulting in me having to summon help during two bossfights whithout ever having done so in any other Soulsborne game, simply because the Boss turned into tanks with huge amounts of health. I wanted to use my main character I played through the game twice with and i simply didn't have the time to level a new character to play the DLC in NG-mode, so this was the only choice I had to access the content I payed for. Because of that, said content wasn't as fun as it could have been. For me, with choosing this way to present the DLC to me, From Soft made their game actively worse . If you want to call me or anyone else "salty" for criticising that, sure, but it's a terrible counter argument to a valid source of complaint.