It's a bizarre take. We can't use retention spots because we might need retention spots, but also we need assets for the rebuild, but we should the turn them down because there is a chance that possibly maybe in the future there might possibly be a chance to get a better asset. I can understand that logic if there was a market for TDA that could bring back something with him at full salary, great. But there isn't. This isn't a situation with Laughton or Konecny where their value can easily improve (or at least not decline). TDA is shit and no one wants him. If we get a 7th for him with salary retained, do it.
The major problem with this logic is that in order to maximize retention spots, we need players that have contracts that need to be retained. TDA is gone after this year one way or another. If getting a random pick for that at 50%, do it. That would give us one retention spot left if someone wants to maybe take Atkinson off our hands (I doubt they retain on anyone else presently on the roster and I also doubt that anyone has much interest in Atkinson). That means your concern is that using TDA's spot would someone compromise what would otherwise be multiple deals. I could see if there were other contracts that we could ship out and TDA's retention would take up the last spot. Then yes, don't do it. But we have 2 right now and nothing realistically on the horizon. Could it happen at the TDL, sure. And lucky for us using TDA still leaves us with a chance for that. Could there be two options and we can't do it this year because of TDA...sure, but we can do it in the offseason next year. If there is going to be an option at the TDL that you are afraid we will miss because we don't have a retention spot, I will bet that there will be a similar opportunity in the offseason when the TDA retention spot is gone.
People need to remember that this rebuild is going to be long. Like really long. So we will likely be doing this retention stuff even when Hayes's contract retention is over. This rebuild is not going to be fixed through one year or one draft. There's always the possibility of a better deal. If they don't use the retention spot at the deadline and TDA leaves as a UFA, that's a waste. A bird in the hand is worth two in the bush. Take the pick/prospect for TDA, retain, and use the other retention spot at the deadline. Then use the TDA spot again in the offseason on someone. Take a bad contract. Plenty of options.