Of course, it is not feasible to provide it to all users, but in case of Google even if you spend in the range of XX thousands - Y million $ per year with them, you have a very hard time speaking with a human being, even if SHTF.
From my basic business understanding, it wouldn't cost them that much to provide better support considering their $75 billion profit in 2021 [1]
[1] https://abc.xyz/investor/static/pdf/2021Q4_alphabet_earnings...