Keep in mind a few anecdotal stories don't amount to much evidence.
Still, I too have now had (bought in a reputable HiFi store, so I hope real) AQ speaker cables breaking on me. Within 1,5 years one of the banana plugs has come loose from the cable when our cat walked past/underneath the cable.
The screws meant for detensioning the cable by gripping the sleeve... don't really grip the sleeve tight enough.
While reattaching it looked to me like the wire mantle was stripped too far back, leaving only the bare wire + that black rubber sleeve. Those are not thick enough for the length of the screws. Trying to tighten them drives them past the (plastic) threading.
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It's funny the product pictures for the cable (Rocket 33) make the banana connectors look like something sturdy and metal.
The renders do not look like the real deal, which really is plastic and match the ones in the picture above (but then silver tips):
View attachment 153833
p.s. AQ calls these "SureGrip" ... I don't agree. Their grip in the speaker terminal is really, really weak.