Add the same predefined time ranges to metric reports (as in dashboard reports for example)

Hello,

Why does the predefined time ranges on the 'metric report' aren't the same as in 'report dashboard' for example?
We have a scenario where the 'last 5 hours' would be ideal but, it's missing from the there (however, it exists within the 'dashboard report' one).

Is this on purpose? Or it was just forgot in that option?

Thanks!