A swap isn’t getting rid of a pick. It is SWAPPING. That means you get a pick back. And the swap only occurs if your pick is better than theirs. Do really think coming out of all this the nets will have a substantially worse pick then we will with a prime Booker and his robin? That the nets will be substantially better than us? We likely retain many, if not all of the swaps - and if they do convey it may only be a drop of 2-8 spots. Not a death knell as you suggest.
I think you're missing the point about pick swaps. Picks at the end of the first round don't have much value regardless. We all know that the success rate there is low. Maybe there are some front offices who have a special ability to sniff out talent at the point in the draft, or maybe the teams who have managed to do well there over the years (e.g. the Spurs) have just gotten lucky. But if it's a skill, we know that the Suns do not have that skill.
So the point isn't that a swap will make the Suns pick at 24 instead of 21, or whatever the details are. It's that a swap prevents the Suns from picking high, unless
both the Suns and Nets are bad. You're looking at a period of maybe as long as eight years in which the Suns are almost guaranteed never to have a lottery pick, no matter how badly things go for them. That's the issue. Yes, the Suns will have a pick every other year, but the pick is unlikely to produce a quality player.
Frankly, the greatest value of late first-round picks is to sweeten trade offers. The idea of picking at 20-something a few years from now is somehow a lot more appealing than the idea of picking at 20-something today. But in a scenario where the Suns have already traded away every other pick until the end of time, they have no more trade sweeteners, because those every-other-year picks aren't tradeable. You're talking about a situation where, for several years, the Suns have
nothing to trade other than the players they actually have under contract. (We will ignore the trade value of second-round picks, which are included in minor details only for cosmetic purposes.)
So, a few years from now, what can the Suns trade? Players in their rotation, who will be either the stars they want to keep, or low-salary tag-alongs that no one else will particularly want. No young talent. No future picks. Their hands will be completely tied.
When's the last time an NBA team went several years without the
ability to make a trade? Has it ever happened? What's the longest the Suns have ever gone without making a trade? I'd be surprised if it's even as long as two years. Heck, it might not even be longer than one year.
You're talking about a team that can't improve through the draft, can't improve through trading, and is severely limited in how they can improve through free agency, because their team salary is already astronomical. For how many years?