False. The Blazers could've traded Roco on his own and got under the tax, they were only a couple million over, not tens of millions.
There were even ways to keep all of Roco, CJ, Norm, Nance and traded away McLemore, Snell, Zeller, sign scrubs to rest of the season contracts and duck the tax. The Rockets did this a few years ago (with a compentent GM like Morey).
The Blazers with a "cap guru" leading the franchise couldn't figure this out, instead bending over backwards to other GM's.
I'm not saying the Blazers should have made no trades at the deadline, clearly the team was bad and should have been making moves to add talent either now or long term. But the justification of taking shit returns on talent because the Blazers "had" to do it to get under the tax is ridiculous.