Yep. When you're the tech lead for a significant feature in a very significant company, indeed they are one and the same. Whether you want them to be or not.
Not quite at the level of a public figure (Pres. Biden can't go around making flippant comments) but more than being just a private citizen or "I just work here". No amount of disclaimer can remove that, and for better or worse it's part and parcel with the job.
It's not the same. The lead dev is not responsible for all marketing around his work. That responsibility lies with the author and any editors of the blog post. Ultimately the CEO can be held responsible for both dev and marketing and they already did own the TOS issue here.
