By DARKO, there were some all-stars who were not better players than Derrick White (we can at least spell
his name right, can't we?). That's not the measure. It's, where do you project Marcus Smart to rate out the next few years? There are plenty of Jrue Holiday / Tony Allen intense defender types who age perfectly fine into their early to mid 30s.
And if you don't care for DARKO, then RAPTOR had Smart as the #50 player in the league, at +1.4 (21-22: #19!, +2.8; 20-21: #105, +0.9 WAR). He had been
projected to return to about a +2.3 rating, about halfway between this year and the previous DPOY year. They certainly didn't see him as falling off a cliff, even if 21-22 was a career year. Or if you prefer
LEBRON, then they had him at +2.0 last year, +0.9 this year, #83 in the league (down from #41 last year, but up from ~#140 / +0.3 the year prior). None of that is "steep decline", unless you were expecting Smart to remain at a near-all-star level.
Look, I'm not arguing we shouldn't have done this deal. I'm saying the people arguing for the deal by saying that Smart either sucked or was clearly about to suck are contradicting the best statistics available, and saying so in defiance of those statistics. And if you're going to argue that, you need better than "it was pretty clear watching the games". We all watched the games too, y'know? Clearly that wasn't some sort of consensus opinion. And given what he has given this organization, he deserves better than that, to be kicked in the ass on his way out the door just because you didn't care for his vibes or something.