That's true. But I've been around for enough decades now, been though many small speaker systems in college, apartments, even my house before I shoved them in the ceilings. There is no such thing as "superior" anything when it comes to small speakers. They are a compromise, just as big speakers are with their space hogging and awkwardness.
Echo vs HomePod I'm betting we are talking marginal sound difference at best, especially with compressed music. HomePod might sound clearer, but it's 2.5x more too. But ultimately all these speakers pump out background, not critical listening music.