My suggestions is that this particular alert is repeated(maybe without alarm) if the current track still poses a threat maybe 1 min after the original warning. These alerts should not be an issue most of the time if flying above MSA but I am sure there are times when MSA is not possible and low level VFR is required due to weather etc. We are all aware of how busy the workload can be in certain situations and by clearing a RED DANGER Alert while dealing with other tasks could for some reason or another be forgotten. We are all human and mistakes can be made....safety first etc. Having a second alert can only be a good thing. This might not be requirement for all but I would like to see this added in future versions as an option for users to select.