So, let's say that's true (and bluntly, after the Hangouts EOL notice I just jumped ship entirely to Signal as, frankly, I couldn't be bothered to figure out what the heck Google was doing), and that Allo and Meet--which are marketed as two different products--are somehow seamlessly integrated with the rest of the Google ecosystem so that you didn't actually need to grok the differences.
Assuming that was true, Google still completely botched the communication, and believe it or not, marketing and communication are really damn important. Google could have the greatest technology ever, but they're perceived as being unreliable, and both their words and their actions reinforce that perception.
So, maybe in this specific example, the transition wasn't as traumatic is the flat out cancellation of Reader or Plus. But in the end, the communication was so muddled that it ultimately doesn't matter because to the rest of the world outside the Google bubble it just looks like yet another example of Google being Google.