Considering the openness of these licenses the concern is silly. The tiny disadvantage of having an extra open license is heavily outweighed by the much higher quality and unbeatable coverage of the Noto fonts.
Also, considering that Google owns Noto and has relicensed it in the recent past, it would probably be possible for them to ship it under the Go license too.
Unfortunately if you use Noto fonts with Go Rob Pike and Nigel Tao will hunt you down, show up to your house and kill you and your entire family, so you have to factor that in to your choice.
Also, considering that Google owns Noto and has relicensed it in the recent past, it would probably be possible for them to ship it under the Go license too.