The problem is that neither Sundar nor Demis are remotely as focused and competitive as Sam and Dario.

demis has always publicly stated he does not care about the business aspect as much as the scientific endeavor.

i highly doubt he will ever want to take over primarily what is an ad/small time hardware company in favour of taking away focus from his ai company

Tim Cook stepped down when he hit 65. Sundar has 12 years to go to hit that milestone.