Quoting their mission statement: "Our mission is to ensure the Internet is a global public resource, open and accessible to all. An Internet that truly puts people first, where individuals can shape their own experience and are empowered, safe and independent." https://www.mozilla.org/en-US/mission/
However Mozilla seems like it did too many wrong bets and didn't execute well (see also FirefoxOS)
That being said, I think the current open source options are actually okay and constantly getting better. They're certainly a lot better today than they were 3 years ago.
They were also doing this. And made an easy to use website, where you could contribute and people did. I cannot imagine it was soo expensive that they now have to throw it under the bus.
I very much hope they don't abandon it, the common voice project is arguably more important than their speech to text engine. There are competing open source speech to text engines. There is no other project like common voice that I am aware of.
It totally is and therefore also a very good crowdsourced project. And they set up already a nice website with badges and other things motivating people to contribute. Daily 15 minutes of a lot of people would mean lots of validated data. Because with user accounts you can also validate userquality etc.
I switched away from Firefox to Brave yesterday. Became tired of how Firefox threads would consume 99% of my CPU endlessly until they're manually killed. This happened about four or five times a day, I'd only notice when performance of everything else tanks. I wish Mozilla would direct more resources towards Firefox than Lockwise and all the other half-baked junk they're spending developer time on.