From technical perspective yes, very easily at the moment. Wiki frontpage also now has a big link for their version of the instructions.
BB has not revealed why they are not doing it. It could be things like incompetence or licensing issue but at the moment they think it's better to let people quit the game for good and/or just make them more angry than give any reasons.
Yes that is pretty obvious if new content and features are added but the Unity version has been delayed for several months already and it's still not even on par with the old version yet. It could take several more month to even get there. A lot of players have not been able to play for weeks. I have not played anymore because I just get zone refresh freezes every minute or two and those rollback many actions I have done making it useless to play.
The old client trick works perfectly and its currently possible to play like we used to with it. Too bad it does mean much as a lot of players don't know about it and those who see it here can see BB is fearmongering about it. The game is a ghost town to me as trade office has only 1-2 pages and our guild chat has only few messages per day.
Maybe it's just time to quit the game for good.