In the past years Google has deprecated more than 100 services, so I will never trust them to build any software using their proprietary stack.
The question is, how long will G Suite itself last (as a paid service)? If AMZN or MSFT come out with equivalent services for free or very cheap, GOOG may reciprocate, and bang, no more revenue.
And Microsoft has abandoned over 220+ products and services.
I just realized you're counting the Others section and incorrectly lumping them into 2018.
It would seem you also neglected to read Wikipedia's banner above the Other section that stated:
This section is missing information about the discontinuation date of each product in this section. Please expand the section to include this information. Further details may exist on the talk page. (October 2013)