it also allows successes and failures to be evaluated in a n

it also allows successes and failures to be evaluated in a nonthreatening atmosphere.请问这句话为什么要用被动语态,是否可以改成主动"it also allows to evaluate the successes and failures in a nonthreatening atmosphere",前文说的是一种工作会议的方式,大概的翻译是这种工作方式准许在平和的气氛中来评价成功和失败来获取经验.