Agreed. I'm unfortunately forced to use the Hangouts app on android since Google Voice was smushed into it (losing 90% of its best features in the process, like being able to mark voicemails as spam). So now I'm stuck doing my texting shoehorned alongside this other chat app that none of my friends use except by accident when they meant to send a text.
Now Google's decided to split SMS back out into a separate SMS app, so god only knows what's going to happen to Google Voice texting in that transition. I think the Voice team got merged into the hangouts team and shortly reassigned, and then everyone who was left on the hangouts team was moved a month or two after that.
Next time I replace my phone I'm just going to bite the bullet and port my phone number back out to a real carrier. It's a bummer, since this is the only Google product that I've ever paid them actual money for.