Blue Angel's Gear Door Broken?

I was watching the IMAX movie on Flight at the Pensacola Museum the other
day, featuring the Blue Angels and their F-18 Hornets. One of the on-board
cameras kept showing a gear door up close that look mangled or shredded, or
cut in some sort of jagged pattern on one of the Hornets. This seemed
strange, since the aircraft are supposedly kept in immaculate condition.
Not knowing anything about the F18 configuration, is this gear door
condition normal?

Best regards,

--Clay