No, it's a bit extreme to say it would be one of the worst trades in history. It's not like he's trading it for a scrub.
What if They get Simmons and he blows out his knee in summer league and doesn't play again.
What if Ingrams body just can't hold up to playing against the pros and he becomes a light Jeff Green.
What if Love comes over and breaks his foot and is never the same again.
All bad trades in after it happens in hindsight, but we don't know whats going to happen a few months from now.
What if the pick ends up being 5, and it's not good enough. Now we are left with a less potential rookie, and no shot at love because we loose Lee's contract to make it happen.
Some times you just have to grow a pair take the best option at the time and worry about the future when it becomes the present. Plus we still have 2017 and 2018 to add to an older, vetted up Boston team. And the Nets don't look like there are going to get any better, and some of the teams in the East could get much better.
Bottom line, it's a crap shoot.
I don't think it's too extreme.
I'm not saying it WOULD be one of the worst trades in history, I'm just saying it has the potential to be. I think that's a fair call.
If you traded the Nets pick for a young star who has been healthy his whole career, who is on a cap friendly deal, then even if something happened and he suffered a career ending injury...you can deal with that knowing that you made the best decision at the time, when the move looked incredibly low risk.
However in the case of a Love trade, the risk is MASSIVE.
1) Love is only 27, yet up until this season he's missed 25% of possible games (one quarter of his entire career) due to injury...and now he is injured yet again.
2) Despite only being 27, his stats in just about every major category (scoring, rebounding, assists, fouls and shooting percentages) have all gotten worse over the past two seasons - in some cases (scoring, FG%) dramatically worse.
3) He's already forced a trade from one team when he couldn't win there, bringing into question his team loyalty
3) In 7 NBA seasons so far, he has played only four playoff games - in which he's averaged 14 points, 7 rebounds, 2.5 assists and shot 41% against an 8th seed Celtics team that was a clear underdog. Doesn't exactly show signs of a guy who rises on the big stage.
4) Teammates have gone on record speaking of his lack of leadership skills, meaning you can probably never depend on him to carry your team
5) He's owned $20M a year every year until the day he turns 32
There are a LOT of signs here to indicate that investing in Kevin Love is a very, very, very bad idea.
On the other hand the only thing you really have to argue FOR the trade is the whole argument of "his numbers only declined because he's playing with Lebron and being used wrong" - which is pure conjecture, and a very weak argument to use as a basis for a deal that could potentially cripple your franchise (financially) for half a decade.
So yeah, all things considered, that trade has all the potential to be an absolute disaster in the worst-case scenario...while the best-case scenario is that you get a pretty good / borderline All-Star big man (which is what Love is these days) for the next 5 years at Superstar money.
I would describe this deal as very high risk / medium reward.
You could get just as much production from a big like Greg Monroe or Derrick Favors for a fraction of the financial cost, and with none of the risk, in which case you have a low risk / medium reward deal, which is (IMHO) much preferable.