Pretend? It's literally in the first sentence of the wikipedia page:
https://en.wikipedia.org/wiki/Cyberpunk
"combination of lowlife and high tech" ... juxtaposed with societal collapse or decay
Citation: Thomas Michaud, "Science fiction and politics: Cyberpunk science fiction as political philosophy"
It does not get more political than that.
https://www.dezeen.com/2019/05/09/notre-dame-roof-vincent-ca...
I see nothing smug there, just a smart and appropriate upgrade. It fits seamlessly onto the rest of the structure, while the former roof was just a boring affair.
Cyberpunk was social and political commentary from the start. Solarpunk is too, but feels less genuine. It feels like a corporate feel-good aesthetic designed for pharmaceutical television commercials hocking anti-depressants.
I've never seen much in the way of social or political commentary from steampunk. Steampunk is extremely kitsch. It looks cool, but there's not much more to it than looking cool and invoking pseudo-nostalgia for the 19th century. At best you get some weak commentary about 19th century colonialism and industrialization chewing people up, but mostly this genre is about glorifying the Victorian/Industrial style.
If you fundamentally alter the way it looks, it is no longer a historical reference. It is something new, albeit with an interesting history / story.
If you redesign it, you should also rename it.
When something is repaired to the best of our ability, the future can look back on it and understand the context that we were trying to make it as it was - and all the hallmarks of this era will be identifiable as the minimum amount.
If we redesign it, we make it more about us and our current time. the future will likely be able to redesign it better, so it's just going to look like an ugly patch that is way too extra.
If we prefer to make the building about us and our current time, we should just destroy the entire thing and rebuild it from scratch as a full redesign.
my personal favourite solarpunk inspired designs, was Vincent Callebaut Architectures’ proposal for the new roof of the Notre-Dame Cathedral after the fire
Imagine being so fucking smug you want to radically alter the reconstruction of a priceless historical building to make a political statement.