A marriage into which one or both parties was forced or coerced is invalid. I know of an unfortunate situation in which a woman was left ill and abandoned after 37 years and five children. The husband met a woman two years the senior of his oldest adult child, and got an annulment because the novus ordo priests were convinced that it was a case of coercion by his wife's parents. They had been "set-up" while stil in high school and fell into sin. The fact that he chose to stay with her for 36 years and raise four more children was apparently meaningless, as was the fact that his wife had terminal cancer and was unable to support herself. There is a reason why Catholics do not formally "arrange" marriages. If it's a mess now, imagine if Traditionals begin to "set their children up.". Introductions and input are welcomed and commendable, "arrangements" are not!
Just my opinion...What do others think?
Yes, Catholic marriage is a free decision on the part of the spouses. The priest has the responsibility to ascertain whether or not the prospective spouses freely agree to the marriage. If not, there could be grounds for annullment.
But I think you confuse the issue here with this example in which annullment is unjustified and unjust. They were "set up" and fell into sin. Not quite sure what that means.
Some people here seem to equate arrangement with coercion. They are not the same thing.
I cannot see why you assume that things would be worse if marriages were arranged, (of course with the agreement of the prospective spouses), than they are in the hit and miss methods employed today by unwise, naive, starry-eyed or sex-hardened youngsters, with little appreciation of the spiritual aspects of marriage.
Also you seem to equate Catholics with Moderns when you say "... Catholics do not formally "arrange" marriages". Are you sure about that?