Don't care for Harris Reed, but Stella McCartney Chloé years already proved that she is very talent. Her success at Chloé and her own brand early years were based on her clothes, not her connection or her sustainable approach (which she done it before it became cool and trendy).
Her clothes are very good quality and definitely more convincible in terms of design, execution and price points than other contemporary brands.
I don't know why Stella keep being use as a bad example of nepotism, while infact I wish the nepotism people can be as good as her. At the end of the day, connection can only gets her so far. It's the quality and the designs that her clients buying, not her father last name.
Stella McCartney would have
never been hired at Chloé if it wasn't for her famous name, let's be honest. Her fame and the aura about brand McCartney (father Paul, mother Linda, etc) brought the much needed hype that Chloé was after to put the brand on the map at that time. As for the clothes, well they were quite average, especially if you compare what Phoebe Philo did immediately after arriving and well into her tenure at the brand.
Personally I find Stella McCartney's whole "green" ethos to be completely performative. A lot of her clothes are made in places like China, Romania, Bulgaria, Portugal, etc. And a lot of her fabrics are supposedly "green" but are also produced using chemicals like acid, are not biodegradable, and also produced in factories that destroy the immediate environs in which they are produced. You'll also notice that when her clothes are sold on retailers like Net-A-Porter, FarFetch, etc, when they are made in China or Bulgaria or Romania, etc, that is conveniently erased from the product information. Only when the items are Made in Italy, is it proudly displayed. It's a bit of a con if you ask me, intended to [falsely] imply a sense of luxury when in fact it is a cost-cutting exercise meant to protect profit margins for LVMH.
In terms of design, well, her pieces are below average in terms of creativity IMO. The level at which she designs is on par with Sydney Australian Fashion Week. It's just very commercial and unoriginal department-store clothing. Certainly not what you'd expect of a designer showing at Paris Fashion Week.
Out of the Nepotism crew, personally I find Victoria Beckham's design aesthetic to be much more alluring and chic. She just gets on with the job and creates beautiful and timeless pieces. The quality and construction of the clothes is also much better. I see a lot more of her clothes are being Made in the United Kingdom which is such a great move too. And The Row, well, that is just on another stratosphere in terms of quality and taste compared to Stella's clothes. You can't even compare.