That is normal practice in the crypto world. Before any major release or upgrade value usually spikes, then a large sell of ensues after the release. I wouldn't let the market be the judge of the new release as this is very common.
There are plenty of positives from bitshares 1.x to bitshares 2.0, specifically in the back end. More privacy, more efficiency, referral system to grow via magnified network effects, and a better multi signature implementation than any other coin.
I think the GUI is the main thing that is making this 2.0 release somewhat lackluster, which is unfortunate given all of the improvements under the hood. I think spending a few more months in beta could of gone a long way towards making this release a home run.
UX is the problem. For example if in the GUI there were numbers on the dashboard always visible which always track the deflation rate (burn rate), then we don't need to keep checking the forum to find that information. Additionally the participant might want to know what percentage of a DAC they own at any given time, which is also a number which should always be on display. Certain numbers encourage people to trade, certain signals and signs get people in the mood.
It could take a few weeks but I think UX can improve dramatically and quickly. It just requires we put more of the philosophy expoused by Bytemaster into the design of the interface, and let people see what they need to see when trading, rather than how it looks now which is more like a wallet.
Trust me, it's not bad, it's better than the original Bitshares release, it's actually decent. But it is missing some things which would make it much better. People who want to buy a token like Muse or Peertracks, might want to know what the current burn rate or deflation rate is on that, reflected in the exchange interface, so they can make an informed decision.
This is like having information on cash flow in trading stocks, it is essential. Without it people will not trade. Under the hood Bitshares is fantastic, and the interface while decent, doesn't live up to what is going on under the hood. Any other crypto and we wouldn't be complaining but because Bitshares can do so much, but it's so hard to make use of that power.
The interface needs accessibility functions, a help box, high contrast mode, and more graphics with the Bitshares 2 logo. It's actually too minimalistic in some ways. On the other hand its nice and fast, smooth, fantastic compared to most websites. It's almost as good as Gemini and very similar but people complain about Gemini too and it launched at around the same time.
See Gemini:
See what Gemini has that Bitshares 2.0 lacks?
Bitshares 2 needs QR codes. How can someone send Bitcoins to the generated Bitcoin or other address from their tablet or smart phone if they don't have a QR code? Of course there are more little details like this but they add up and become critical.
Some other aspects of the trading engine are new to me and there has to be videos to explain. For example what is: Borrow BTC or Borrow USD? These are concepts which have to be explained.
The good news is it is in a browser, so nothing stops Bytemaster from embedding the explanation Youtube videos into the wallet. I would suggest that video is embedded for people who would like Bytemaster himself to explain the concept. Anything else should perhaps be searchable, if it's possible.