Jordanians[regime] are worried of spill-over from Syria and now Turkey. This is compounded by number of Syrian refuge as well as the past Palestanian refugees, not to mention common regional issues of youth unemployment and lack of general opportunities. Jordan probably wants to preemptively downplay the regional uprising lest it motivates internal uprisings.

Additionally, Potential uprising in Jordan will give second thoughts to global players who have been wanting to arm the Syrian rebels (mainly to block Iran's retaliation path from Lebanon against an Israeli strike on Iranian nuclear facility, now and in the future). Danger of Jordan falling and turning further toward an Islamist regime could cause more problem for Israel than Iran's influence in Lebonan via Syria. If we see uprising in Jordan, we'll soon forget about Syrian rebels.