It will certainly happen that you fail the combo due to uptime/immunities when you’re at 1-4 CPs and thus you’re forced to restart the combo and use combo-point generators at 5CPs (depending on initial CPs and the amount of crits) as to not apply a non-BT’d finisher.
You tried to play it off as if BT will only be a viable choice in “a very small amount of situations” (paraphrased).
This is simply false, as BT will be the optimal talent in all ST situations, which is a considerable amount of content (e.g. all PvP and most of raids, and some dungeons, with the raids and dungeons depending on their design).
Sure, they wouldn’t. But then again, in my opinion, I think BT was a mistake to begin with and it should never have been introduced to start with.
I think BT (and similar overly complex and ridiculous mechanics) are a crutch to the spec and would simply not be accepted by any other spec in the game. BT is not even accepted by most Ferals, as they have already left the spec or quit the game entirely. While not a perfect measurement you can even see the dislike on the forums.
The only place where BT is hailed as some form of masterpiece is the Druid discord, where they bully anyone who disagrees with that consensus into silence or even into leaving the channel. I.e. it’s an echo chamber.
The people who like BT are a small, vocal, and bullying minority which has succeeded in turning Feral into what’s been mostly a dead spec for ~2 expansions now.
But this is, of course, my opinion and my interpretation.
It would turn your remaining bleed damage effects into short (~6sec) duration bleed. Either that or it’d turn your bleeds into an instant damage effect (depending on how one were to implement it). But it should be on a considerable CD, maybe 1.5min, so you can plan around when to use it and not just use it mindlessly all the time etc.