The cost of optional equipment and non standard modifications is always a factor.
Managers always know best and the opinions of people in the field are often ignored.
I remember when a 365N was put into service for the harbour pilots at the entrance to Rotterdam harbour on an area of reclaimed land. The dust was so bad that the engineers on site asked for a sand filter kit.
The management said it was uneccessary.
One month and two engines later the sand filters were on and operational.