Is LR worse than other products? Possible but let's see some data to back it up, not impressions of outliers.
Data, Schmata ... the only data I care about is if the app(s) I pay for work as intended.
I don't care one iota what the data is when comparing issues for Adobe products with other developers. If I have a problem with a Chevy Silverado ... how does comparing issues with a comparable Ford F150 going to solve my issue? GM is ultimately responsible for clearing up the issue, not Ford.
As I have indicated before, we had to roll back Lightroom four times during the lifecycle of the 6.x version. I don't ever recall such instances for any previous version cycles for LR or any other Adobe app we rely on for our livelihood spanning 3 decades of use. That's the only metric I care about. You may consider such instances as the status quo of the industry, but that doesn't solve the issue. Especially since Adobe doesn't refund even a portion of fees for such instances.
Adobe has a track record of late for update releases that flat out break long standing workflows. I firmly believe that a little more attention to detail, prior to the release, could go a long way in combatting those issues. With the subscription model, they are no longer compelled to hit a hard and fast target date. Why is it wrong to expect them spend just a bit more effort in QC before they release updates?
If you disagree and want to give them a pass on this topic ... by all means do so ... but that won't solve the problem either.