Other mistake: The hour of Maurizio Gucci's death was declared as being at around 8 am, but when he rides his bike going to the "crime scene", on the street there is a clock showing 9:40.
Other mistake: The IRS agent that knocks at the door of Aldo's squash booth sports a badge that is more phony than a football bat; it doesn't have a name, expiration date, or a full sentence on it. (01:21:05)
Other mistake: When Patrizia watches Pina Auriemma's commercial, the word "verità " ('truth') is written twice wrong (no accent), and most importantly, the phone number is a 800 number, which was not a valid number in Italy back then, being a modern (post-1999) prefix for toll-free services. In the 80s, TV fortune reading services as the one the movie wants to portray would have a normal area code. (00:40:00)
Other mistake: When Al Pacino reads the magazine (Grazia) with the news of Maurizio's wedding, the article is probably a reproduction (with the actors' picture in place of the actual Maurizio and Patrizia) of a news story about the actual wedding, so the details conflict entirely with the fabricated story. You can easily read (in Italian of course) that they met in 1971 (1978 in this movie), there are over 500 guests to the wedding (much more of a private affair here) and Maurizio had to ask some of his friends to introduce Patrizia to him and asked her out, which is the opposite of what happens here. (00:28:40)
Answer: Yes. Basically, within the narrative of the film, Maurizio is weak-willed and easily manipulated by Patrizia; he didn't even want to be involved in running Gucci in the first place and has no real business acumen. So, he both overextends the firm and spends a huge amount of money on an extravagant lifestyle, which leaves him in financial trouble and at the mercy of a hostile takeover.