Having a high-floor, low-ceiling post (with size) for depth is not the worst thing in the world. I would say the roster sorely missed such a player the past two years.
Jacobson would have been in the rotation for 5-15 minutes per night two years ago to give Niang and McKay a small spell and would have been nice to have to either start or, even if you still go with Burton, have a bench post who can effectively fill minutes when McKay "went down." I cannot see how he would be an inferior option to Simeon Carter's non-productivity. I also cannot see minutes used on him as somehow less useful than Ashton or Cooke were.
I imagine he would have started last year or, at least, pushed Solomon for minutes. He might have made Holden unnecessary -- maybe starting (and more effective than Holden) for the early part of the year before giving way to Solomon but remaining in the rotation. He would have been nice to have those few games where Solomon was out with the injury, as well.
Does not have to be great -- just fight hard on the boards and clog the lane. If you are in the right position for some easy buckets and maul somebody on defense, even better.
Again, I would take that. That is a safety harness and depth down low that we have lacked and really missed the past few seasons. A hedge against injury is nice, too.