I don't think China wants "clean up" civilian infrastructure, in fact I think the goal would be to the Island to return to "normalcy" as fast as possible. But if Ukranization of a conflict happens, a grinding war, then these facilities would go out of service pretty quickly without outside input.
tbf i really dislike the idea of care about "civilian" in war
it only work well enough if you owned most of the world information flow , "new"/media outlet/social media ...etc
if not just look at russia , they tried so hard to be a good guy , tried so hard to avoid dmg to civilian...etc to the point it bring massive dmg to their own war effort , cause so many mistake , lost , slow down , casualties all benefit us/nato/ukraine side
lead to the war drag on for 3+ years now
and what they got out of it ?
nothing ...entire US/western information/media network still paint them as blood thirsty evil 24/7 as usual , include countless of western/us content creator , "totally not CIA fund channel"
brainwashed anyone using english media 24/7 and alot of non-western people eat that up + believe it
if china plan to repeat extractly the same crappy show then i will be very disappointed
my point is : if enemy beat you in world wide information/propagranda/influence warfare , paint you as evil and you can't undo it
may as well be the real evil , the worst nightmare for them to get the job done much faster instead of playing right into their hand and become a "toothless devil" + suffer so many disvantage , set back ...etc
p/s : "toothless evil" = someone not bad but still being paint as bad guy and many people around the globe still believe it