Is that why nobody has shown serious interest in him as a free agent? He has been available for some time now.
Also, why was his snap count so dramatically reduced late in the season in favor of Williams? Towards the end of the season he was playing ~25% of the snaps compared being among the highest on the defense in snap count earlier in the season.
The fact is he was clearly on the decline, his PFF grade for last year was -8.6 and he graded negatively in Run defense, pass defense and pass rush.
I do not deny his being released was a numbers game, but typically the guys who aren't earning their pay tend to get cut more often and even more often the guys who aren't earning their pay aren't playing well. Boley did not play well last year.