From what I understand, this change affects me personally in a negative way; it will prevent me from making Google Voice calls on my phone. I use Google Voice

From what I understand, this change affects me personally in a negative way; it will prevent me from making Google Voice calls on my phone. I use Google Voice with a US-based number that I registered while I lived in the US. I've since moved temporarily to Taiwan and switched to a Taiwanese SIM. Recently, my Google Voice prompted me to re-verify my US-based number (which I no longer have access to) and eventually disassociated it with my account when I didn't do so. So now I do not have a "real" US mobile phone number associated with my account. I cannot associate my Taiwanese number because the country code must match my Google Voice number. The Google Voice app does not let you make phone calls if you do not have a real phone number registered in your account. I've been using the Hangouts Dialer app to make calls, which doesn't have this requirement. But, per this announcement, it is going away. So after this I'll have no economical way to make calls to the US on my phone (calling via the Taiwanese SIM is expensive). I think I'll work around the problem by associating one of my parents' numbers with my account (any number will do, it's mainly an anti-fraud measure), but it would be great if I didn't have to jump through that hoop.