What is the simplest way to identify why a lead has ended up in Marketing Suspended?

I've set up and ran an engagement program pilot for our account management team, and 22 people were not sent through the engagement program because they were on the Marketing Suspended list. 

I'm viewing the activity log of each individual person to identify why they are on Marketing Suspended in the first place. This is not painting a very clear picture and is very time-consuming.

** For example, this particular person below, when looking up Marketing Suspended in their activity log, it tells me that they shouldn't even be on the Marketing Suspended list, although their value is set to true.

Is there a better way to easily identify why someone has ended up in Marketing Suspended? And what is the cleanest way to remove this list of people from the Marketing Suspended list?

I appreciate your help!

@Mick Warner‌