This week's stats are only helpful at the end of the week. A "This week to day" option would make more sense. This would compare e.g. on a Wednesday noon time the current week's data to Monday to Wednesday noon the previous week.
Similar for the daily comparison: comparing a Monday workday to a Sunday non-work day, doesn't make sense, while comparing to the previous Monday - or even an average of the previous x Mondays would be more helpful.
Thanks.