In the planning stages, was it not concluded, was it not obvious that the criteria for assessing risk should be the same across the board? Similar circumstances should yield a similar conclusion. The laws of physics and thermodynamics will apply the same way, presumably, to the same claim and the same circumstances.
Yes, different claims, different applications, and that's why you'd have the range of 6 months, 36 months, or whatever, because of different circumstances, but under similar circumstances, if our inspectors cannot draw a similar conclusion, then we have a mishmash.