Even if so, when I said Redigit isn't the only one who works on Terraria, I meant the other members/associates of Relogic who could be tasked to Terraria or Terraria 2 who are instead putting effort into this thing. Whoever is working on this, they are talent that Terraria is missing out on.
Terraria is reaching fundamental limitations of its base code. There will come a time when great things simply cannot be done with the game. Why force the team, and the millions of fans, to be stuck behind this limitation? Terraria 1 has received years of support, but it can't be the primary focus of Relogic forever . . . to expect otherwise is completely unrealistic.
Meanwhile, Terraria 2 is NOT under development yet, so there is no talent being "taken" from T2. Rudi even said that the team working on this is distinct from the T1 team, and since T2 isn't ready yet, and at a certain point the team needs to move on and expand, there is no reason to throw a whole new team at the old game.
So I assure you, your concerns are unfounded.