I used to be a fanatic about tree style tabs, but due to the new api, it's unusable with containers. I recently switched over to vertical tabs for that reason. I miss the tree layout, but at least now my tabs maintain their ordering.
I'm sure you're aware that not every user will have the same experience with a piece of software. There are a couple of bugs referenced in the Github issues for TST relevant to containers. There is a workaround, but I experience the issue again within a half hour. Not worth it to me.
Alright, it's just that the phrasing - blaming it on the new API - made it sound like an inherent flaw that would affect everyone, which definitely isn't right.