Two judgements were made to my knowledge:
1) Google enjoyed significant market status at the time and a leap forward like seemingly semi conscious AI in 2019 would be seen as terrifying. Consumer sentiment would go from positive to “Google is winning to hard and making Frankensteins monster”
2) it didn’t weave well into googles current product offering and in fact disrupted it in ways that would confuse the user. It was not yet productized but would already make the Google assistant (which at the time was rapidly expanding) look stupid.
A fictional character companion was not clearly a good path.
All this being said, I integrated the early tech into my product division and even I couldn’t fully grasp what it would become. Then was canned right at the moment it became clear what we could do.
Eric Schmidt was the only leader at Google who recognized nascent tech at Google and effectively fast tracked it. When my team made breakthroughs in word to vec which created the suggestion chip in chat/email he immediately took me to the board to demo and said this was the future. (This ironically wound a long path to contribute later to transformer tech)
Sundar often ignored such things and would put on a McKensey face projecting everyone just was far dumber than him and his important problems.