It's hard not to think they aren't abusing the COVID IL. The parameters should be pretty well-defined given they all wear contact tracing devices and get tested. I wonder if teams have some leeway not to put guys on it... but then can be more aggressive if it suits them.
Between this and the long trend of reliever revolving doors, why even have a 10-day IL? The Phillies shouldn't have to play without Harper for three days but they also shouldn't have to be without him for 10 (or in his case, 7) if it isn't needed.