In general, that's true. But Firefox is an exception to this.
The most important thing to a regular user, is that their websites work. But for websites to work, the developer had to test in Firefox. So, Firefox's alienation of power users has hurt its regular userbase.
There's also the distinction between users vs customers. Most users pay nothing for Firefox. A relatively small number of free-software lovers provide donations. If they want more of those people to give more money, Mozilla would have to cater to power users. This leaves Mozilla's main customer as being Google, who doesn't really want Firefox to be good.
The other exception to this, is if the software you're making is so specialized, that you can get by on a handful of large institutional customers. Obviously this is not where Mozilla is, it's just another case where telemetry is not necessary.
It more read like some marketing FOMO inducing lingo like "use the new feature better now or you will miss out once they're gone".
Do you have a user panel at Mozilla to vet stuff like that? I would love to participate. Being a Moz suite user since 1998.
https://blog.mozilla.org/en/products/firefox/introducing-new...
But reading this and answering for Mozilla staff should get them some feedback:
> What’s next for Firefox colorways?
We’ll see. We’ll go where our customers take us.
Well, I saw and I clicked to skip this BS.
With that said, I don't really like telemetry and will turn it off.
Otherwise if it's just on a whim of the lead dev, that often does not scale. And we've seen with lots of projects, that actual regular-user feedback, not power-users, is crucial in taking those decisions. Switching off telemetry is easy, but I suppose you also have concerns about technical issues, and those can be really difficult to compromise on (a lot of people suggested forks when XUL was removed.. but today probably very few people would want XUL back).
To have a successful fork, you need devs with either a business model behind it, or enough motivation to maintain it as a hobby. For a while, it worked for Iceweasel, but it was just branding. Firefox is complex, requires a lot resources to build, distribute binaries, etc.
I'm not affiliated to Mozilla, but I do help maintain another open source project, where, in my opinion, power-users and consultants drove the project in a direction that made the product more difficult to use, and therefore gave it a bad reputation and limited growth. I can say that because I have access to some of the telemetry, and also because I talk to a lot of random users as part of my work.