I agree with your comment on Bennie (and I was really pulling for him to make the team his first year), but Dixon is a decent punter.  The Broncos are the second worst on average return yards.  It appeared to me that Dixon has been asked to not kick as far and go higher to try and cover up how awful the punt coverage has been.  It was particularly obvious against KC.
The Broncos really miss Kavyon on punt returns.
The 2017 Broncos special teams are worse than any other year I can remember since 75'.  They are awful at punt coverage, receiving punts (how many fumbles and penalties the Broncos have amassed in half a season is truly staggering), kick returns (JUST STOP and take it at the 25) and field goals (I miss Elam and even Prater).