Reggie was awesome not just because he was recognizable, but also because he actually did stuff for the western market and had the guts to go against Nintendo Japan if he felt like his idea was better.
Without him, we wouldn't have had Wii Sports included with the Wii, and I do think it played a huge part of the Wii's success. Now you can immediately see the difference, with Nintendo putting a price tag behind their garbage Tour thing
Reggie and Iwata were a great match, I've read some interviews about how they worked together, without them Nintendo just lost something and unfortunately, they never tried to replace that something properly.
I heavily doubt that Devon will be anything other than a repetition of Doug Bowser's work. I hope she proves me wrong, Reggie was also a businessman and he looked passionate about video games, but he's an exception to the rule and I still doubt businessmen overall.
Whenever she talks, she just doesn't sound like a real human being. Phil Spencer at least does that in a better way (it's still bs corpo talk, but he has a more "human" way of saying they're delivering AWESOME GAMES THE BEST OF THE INDUSTRY. I might be onto nothing and just got used to him tho).
Sarah Bond .... she seems just 100% ungenuine. Replace any of her appearances with ChatGPT and it would feel the same