Shoot, consistency by flight crews flying would be a god send... We can't get the same company flying the same aircraft the same way much less the same aircraft from different companies.
It is nice that the crews are trying to save the environment and the company some money. However, if we can't keep safe separation then you get a go around and how much money have you saved the company? Are we perfect at what we do? Nope, but we do our best with what is given to us. If there is no traffic to be concerned about then we try to let you do what you want with YOUR economic considerations. Otherwise though our first and foremost concern is that of separation and second is that of capacity to the airport (what REALLY matters to the air carriers bottom line.) and everything else is secondary...
regards
Scott