Part of the AA 587 investigation focused on rudder use. Recall is that the manufacturers state that rudder is for s/e and crosswind controls.
Post 9/11 pilots talked about using yawing actions as defensive manuevers. Manufacturers printed guidance against that technique.
Can they sideslip? Yes. Will they fall apart? Uh, no. However keep in mind cross controling is also a spin/departure entry technique.
The question becomes if you really need to slip the a/c are there better alternatives(G/A, missed approach, etc) that would be more prudent to use?