Only 5 Minute Briefing Time Allowed Before Shift

My Agency has a policy to arrive 15 min prior to shift and I know this has been the policy of most companies they are contracted with for the reason of briefing and so forth. This past week I went to a Home Hospice assignment and during my shift I was reading the Home Hospice company policies that the patient was under, it said shift is to begin 5 minutes prior for briefing.
I had done several cases for this same company about 18 months ago and the policy use to be 15 minutes. I feel this policy is another penny pitching method. I do know if the patient were a repeat perhaps 5 minutes would be enought time, and I also don't want to use the "I am Agency" excuse should there be a conflict. I will rebuttal that my company policy is 15 minutes should a issue arrise. It just irritates me and I could beat a dead hoarse with my thoughts on this.
My question is - has anyone-else seen this? What are your thoughts?