Great improvement, but I think there are still room for making it even better. I can imagine the whole process will still be confusing for someone who is not familiar with cryptos.
When clicking "sell" from the steemit wallet I actually don't expect to be sent to some third party site just like that, I expect to choose how much to spend directly from the wallet view, and I expect that all relevant information is passed over ... i.e., I shouldn't have to reenter my username on the blocktrades page.
Any wallet can integrate us and provide that kind of functionality. It's already available now in the BitShares wallet, for example. Our site's functionality is accessible via a public API: https://blocktrades.us/api/v2/explorer/