A feature rich, reliable table view in SproutCore (from which Ember was forked) has been a highly requested feature for at least 4 years. I'm glad that someone has finally done so, but I am also disappointed that it was so difficult.
Additionally, the Addepar guys put this together in a few weeks. I'm unsure where your claim that this was difficult is coming from.
SproutCore's current table view demo still stutters and lacks the features of the table view featured here[1]. If the Addepar guys put this together quickly, it's because there are no longer architectural road blocks preventing them.
I think the "lack of architectural road blocks" is called ember.js. If you're working with Sproutcore and haven't spent time with ember.js, you should take a look. It has a bit of a learning curve but it's very powerful once you get past that. The guys who built the table would tell you that instead of being an architectural road block, ember.js was the power that made the table possible. That's why it's called ember-table.
The guys who built the table would tell you that instead of being an architectural road block, ember.js was the power that made the table possible.
That's what it means to be a roadblock... if you don't run into one, you would never imagine that there could have been one. A roadblock is what happens when you attempt to do something logical and find out that due to something outside of your control, it's realistically never going to happen.