Honestly, whatever we do, I hope we don't end up with Bender. He isn't the next Porzingis, or anything close, in my opinion. I call bust. You guys can call me out all day long if I'm wrong, and he's a stud. But right now, I don't want Bender.
I won't call you out, the skepticism is valid because we've seen little of him compared to the other prospects and he's not being tested against the same competition so there will be questions over how he will translate.
However I would say that the comparisons to Porzingis are a bit off. They're both European and 7 ft tall. That's about it. Porzingis is a post player who can stretch it out to the 3 point line, but defensively he is a 4/5 and as he develops his frame he'll be a 5.
Bender is a 3/4, has the lateral speed to stick with guys on the perimeter and is a more up tempo player. He likes to get out and run. Being 7 ft tall helps him finish over guys on the fast break. He's reported to have a very high motor and a drive that improves him year on year. At this time I wouldn't say he's as developed as Porzingis but if Bender comes over this offseason he will be a year younger than Porzingis was when he came over.
Furthermore Bender has appeal because he will hopefully be a draft and stash, staying in Europe for another year. This could be important for us with the roster crunch. If no trades materialise we can select the upside of Bender at 3 without using a roster spot, then use the DAL and BOS picks to get NBA ready players that can slot into the rotation if needed.
Also consider the other options. Hield, Murray and Brown. If we take Hield you have to use him from the start because you aren't selecting him for the long term but the now. Would he really dislodge Bradley, Smart or Turner? Take Murray and you are left with a selection nightmare in the backcourt likely selling low on someone to clear the jam. Brown I can get on board with but he's a project that will take up a roster spot next year. That probably means Young and someone else need to be cut/moved.
Going further down to Poeltl, Ellenson and others then we may as well trade back and pick up an extra asset in the process, like a future first.
tl;dr you are right to have concerns over bust potential but the star potential is also there, comp to Porzingis is off