There definitely won’t be any way to fix it on the wifi card side (even if the fault is there) as the system crashes well before there would be any chance to load new firmware. Not sure the sleep issues are a thing on the 7040U platform but I am personally more an on or hibernate kind of guy so I probably would not notice it.
I am personally hoping an eventual be210 will solve those issues. Not going to upgrade to wifi7 for quite a while so I can wait and the ax210 is reeeally good and already uses barely any power (I got the be200 cause I thought it may use even less)