Why is the UAE government so afraid of the Muslim Brotherhood?

This is more about Dhahi Khalfan's personal views rather than being an official position of UAE government . He is the chief of police not minister of state/foreign affairs. But Dhahi being a high ranking senior official he can pull some strings as far as who gets in UAE and who doesn't. Dubai got negative reactions from several neighboring countries & on internet because of his media outbursts. Even religious figures like Sheikh Qardawi & the Kuwaiti motivational speaker Sheikh Tariq Suwaidan criticized him. I think Tariq Suwaidan is no longer allowed to enter UAE because of Dhahi. There is a youtube video in which Suwaidan talks about this. Yemenis also told him some criticisms after he made some pejorative comments about Yemeni people. But as I said he is a senior and older than UAE rulers & obviously the minister of foreign affairs & minister of interior. They wouldn't say anything the upsets him as he is like a father figure to both.

In the article linked Dhahi admits that he is not speaking for UAE:

"Lt General Dahi said: “Who said I [Dahi Khalfan] represent a shaikh or Dubai government or the UAE."

they learn from the experience of the neighbouring countries