These are not holes they are completely exposed fuel rods more than are in a working reactor core sitting in the open air. How many rods were cracked we don't know but 0ne would be one too many.
6:18
6:31
9:11
1:24
3:01
9:30
8:59
1:13
3:16
8:41
12:09
6:34
3:46
12:10
10:11
17:34
21:10
7:08
32:18
1:33
:50
3:37
15:00
3:02