To me, that's a real problem. Beta has an understood meaning. Using it to mean something other than that meaning is confusing. And confusion is something that should be avoided with respect to the control software for a motor vehicle that travels on the public highways.
Also, the Beta label always seems to be an attempt by Tesla to act as if users should understand that AP might not actually work 100% reliably, and therefore Tesla shouldn't be held responsible if AP doesn't work as expected. That's a really problematic sort of shifting of responsibilities.
If a company sells a product, the product should work reliably and properly. That's especially true where the product has a real potential for injuring it's user and (more importantly) inuring others on the road and/or damaging other vehicles.
It's not good that AP often drives only as well as a teenage driver or a sleepy driver. That puts too much burden on all the other cars on the road.
Plenty other products have use "Beta" in the same way (see my "perpetual beta" link). Also, having the label act as a warning is actually a good thing, because it shows the reality that Tesla's system is not perfect (as are none of the autosteer systems out there, see point below).
As for shifting responsibility, I have not seen an example where Tesla ever used the "Beta" label to shift responsibility. Rather, they use the standard disclaimer that the driver is responsible for being alert and ready to take over. This disclaimer is present in every manual for similar systems in every auto manufacturer.
I'm not talking about AEB. AEB only kicks in if you make a mistake and are about to crash. Therefore, even an imperfect implementation of AEB is an improvement over not having any AEB. Drivers don't drive differently than they normally would merely because they are relying on the presence of AEB.
The problem is with Autosteer. An essential aspect of using Autosteer is that the driver behaves differently than they would driving a car without AutoSteer. Without Autosteer the driver steers for themselves. With Autosteer, the driver lets the car take care of the steering until the driver decides he or she needs to step in.
This change in driver behavior has a real potential for making a car with Autosteer more of a hazard to other cars on the road than a car without Autosteer. Experience has shown that a lot of drivers don't know (or disagree about) when they need to step in and how AutoSteer should be used. This is dangerous. And Tesla doesn't help by giving vague documentation/instructions for the feature and constantly changing its functions/performance. That's why Autosteer shouldn't be released unless it's extremely reliable and its safe use cases are very well documented and explained.
If you want to talk Autosteer, then let's talk autosteer. Tesla's autosteer is the best in the industry and more "perfect" than any other system (needs the least corrections and does the best job of keeping the car in the lane, even with faded lines). None of the systems however are perfect or 100% reliable, even in narrower use cases (for other systems, ping-ponging is a problem even in optimal conditions).
Semi-Autonomous Cars Compared! Tesla Model S vs. BMW 750i, Infiniti Q50S, and Mercedes-Benz S65 AMG - Feature
Hands off
There's been talk about this previously, Tesla's AEB is not the most capable, but its autosteer is. And in response to criticism about not enough nags to get people to keep their hands on the wheel, Tesla even made changes to address that.