I haven't played tonal pole courses...but I have played object courses. And let me say, I really missed the baskets!
There is no ambiguity of whether or not a putt is holed with a basket. Sure you have the occasional disc pop out.
I am a ball golfer first, a disc golfer second. And in ball golf, sometimes awesome putts "lip out." Even less frequently, I have had a putt go in the hole, hit the metal rim of the cup, and pop back out. These are frustrations that one gets used to in ball golf. I liken the chain-out to the bad lip-out. You thought you had a perfect putt, but it was just fractionally off. Is it frustrating, yes. Is it part of the game, yes.
I would much prefer the occasional frustration of a chain-out to the ambiguity of the tonal pole or object, where a grazing shot can be a point of dissention between parties.