I would describe sabaki as tactics used when out-numbered or out-muscled locally, especially characterized by a willingness to sacrifice some stones to gain a flexible shape with others. Black`s connection is not sabaki as he can no longer afford to lose any of the stones. If black`s next move does not fix those stones (eg by forming a base, which is very very likely) then his sequence will be described as "heavy" (where 'light' and 'sabaki' mean the same or similar).
Very relatedly, for Redundant:
Could you describe the sort of sabaki sequence you were anticipating? (After your connection I doubt anything local is going to be called sabaki...)
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does not feel thick at all; it feels heavy, exactly the opposite of W's original intention of playing sabaki.
or (b) is more severe and even better.