Some of it's just semantics, largely thanks to Microsoft-led doublespeak. "Insider" used to be "beta tester".
(Today, "Fix releases" have become "service packs". Somewhere on the Microsoft campus there is a group dedicated to terminology enforcement, making sure no words slip out that might have a negative connotation. "Bugs"? No, you mean "issues".)
Rolling updates allow bug fixes to be addressed sooner. So-called "agile programming" was a response to the limitations of the old marketing-driven major/minor scheduled release model, which forced users to live with known bugs for months or even years.
Those bugs were often actually fixed even before the official release, but those fixes couldn't be included because the revision had already been frozen in preparation for being sent to manufacturing. But in the era of electronically-distributed software, there is no longer any need to freeze code weeks in advance while disks are being duplicated, packaged and shipped. When a bug is discovered and fixed, we can and should make the fix available as soon as it's been tested and verified.
Yes, we've all been conditioned to be wary of "new and improved". With software, that implies "old bugs you knew about have been replaced by new ones you don't know about yet". Software development is by nature a moving target.
However, believe it or not, code does become more stable over time as the underlying foundational nuts 'n bolts code becomes thoroughly debugged and optimized. It's actually been quite a long time since we've had a showstopper bug in SONAR or Cakewalk. No, "AudioSnap 'follow project tempo' and 'Enable Stretch by percentage' are not mutually exclusive" -
not a showstopper.
To address the OP, if you want a heads-up on new changes, ask to sign up for the beta program. You can install the newest test build separately from the last official release. But
don't do that if your main concern is stability. Instead, hold off on installing each new release for a week or two. Read the change logs and decide if any of the fixes or new features are crucial
to you. If not, wait another cycle.