Except for every one deprecated product you can name, there's probably more like 10-20 new product. The issue is that Google has gotten so big and has so many different projects, that the number of deprecation is just bigger, even if percentage wise they're probably lower than most other companies.
Try looking at https://gcemetery.co/ and naming how many of those you even recognize and can describe without looking it up. Everyone just loves mentioning Reader, but except the new batch of G+ and Inbox, there hasn't been any significant product killed in a while.
News and weather is basically just merging with another app, reply moved into Android (I beta tested reply, and despite the app being gone I still have the features), Tez still exists as a part of pay, showtimes got rolled into normal search, tango was experimental and became arcore, google x very much is still around, glass never left beta as a consumer product and is still relevant as an enterprise product. Chrome frame has no reason to still exist, Quickoffice merged with Google docs, the Nexus line became pixel, noop was a 20% project, not an official google product.
When you remove the garbage, you end up with a company that deprecates a few things each year, most of which you've never heard of anyway.
chromecast audio is replicated trivially by chromecast + hdmi to audio converter(that you can buy for 5 bucks). i think the real problem is that the solution is confusing and people aren't linking up old audio systems. they're upgrading.
chromecast's ux was always waaaaay to complicated to understand for non-tech people and audio is it's first casualty.
That site is missing a lot since I thought of a couple right off the bat it didn’t have. Disco, QuickOffice, Songza, Slide, Bump. There have been some other google music/YouTube related shutterings too that I can’t give names too.
I recognized and could explain more than half listed, but only cared about a couple (didn’t care about Reader).
Try looking at https://gcemetery.co/ and naming how many of those you even recognize and can describe without looking it up. Everyone just loves mentioning Reader, but except the new batch of G+ and Inbox, there hasn't been any significant product killed in a while.