Rubber Glue, or Claim insurance on Tires?

Got my Tires replaced on my 2014 tC about 4-5 months ago, and realized about a month ago (barely getting to making this post now) that there’s a slight slit on the tire just above the rims.

I haven’t felt any change when driving, but is this unsafe?

Should I just claim the Road Hazard Protection plan I got on the tires? (From Firestone. Brand: SureDrive Type: Sport.