Silence timers for Gruul are not random enough. They seem to happen between 30-33 and 40-45, while on retail it happened ranging from 30 to 73 seconds. There are more silences than retail, but they are also very predictable now. I am linking some videos, I recorded sped up fights by checking either chat DBM message time stamp or top right timer the moment they receive silence. Normal speed I just checked youtube time.

Gummycraft:
First pull: https://youtu.be/MHVS6PhD6Aw?t=3034
33
42
32
43
31
45

Second pull: https://youtu.be/MHVS6PhD6Aw?t=3626
31
72
41
30
42
32
40
30
42

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Retail video 1: Checking DBM timestamp
https://youtu.be/Rg4x9CRk4TA?t=99

55
65
54
55
63

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Retail video 2: Checking timer on top right
https://youtu.be/jAslYF5SleY?t=112

55
49
71
41
48

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Retail video 3: Checking combat log timer
https://youtu.be/38LACFVos-Q?t=111
46
54
40
48
61
42
43

Retail video 4: read combatlog(Yes I read through those pixels :X )
https://youtu.be/yi5dUwGPaoU?t=62
73
62
48
40
39
33
32
38