I understand what you're saying but Miu Miu back then wasn't crazy expensive as Prada's Marc by Marc or See by Chloe; and middle class could have afforded them easily at the aspirational price point. Now it's only for the mega rich, its pretty tone-deaf with ads like these.
People often criticise Virginie Viard's Chanel or MGC' Dior, I say no free pass for Miuccia now
PRICE
price of all brands became for the mega rich to use your term when we talk of fashion brands with a fashion show presence or in the luxury sphere.
But back then Miu Miu was also not cheap or affordable yes if you take inflation and price increase in concentration to now has been stupid crazy but the
thats not only miu miu.
STYLE
dna of the brand is what it is and that the CD dips in and out of parts of the style is natural cycle of the brand style.
and it can't be said they or she is following other brands that came after just for hype etc
TONE - DEAF
the apartments used even if empty are not crack houses , even the more bucolic farm like house in on of the pictures relates to long standing DNA of Miu Miu an deven prada , and with roots in arte povera and ZERO art movement that she and she supports and collects and part of Italian cinema.
it has roots of celebrating and the value of the more simple things in live and using things that are seen by the snob as trash etc but are and can be high concept etc.
the girls with no make up is adds to the adolescence also part of DNA of glam is not only for the well off same as very stealth welt woman go around mostly bare face its really has to do with context of where you come from what less or more looks like rich or poor.
I find to much is often looked only via a american lens of culture and not enough a worldly view
things have other meaning than what one can only understand and does not make it more real or fact because of different backgrounds or knowledge
that said do i think it me fav miu miu ad no i am shocked by it no its just another chapter of the miu miu book some pages i skip faster some i stay longer.
also Miu Miu is Miuccia inner girly she want to be naughty now and high light the sexualty of Miu miu girl its fine let the girl find her space in life even if her shoes cost now 3 times more she will save up and eat noodles for 2 months to pay of her credit card lol