Yes, but the pros and cons of cardioid are a bit more nuanced.When flush mounted on a large wall, 8380's can have the bass directivity control of a cardioid speaker while also having less front wall SBIR.
It’s often said that a cardioid speaker is advantageous for situations that require placement close to the front wall (the wall behind the speaker) because the rear null pattern reduces boundary reinforcement. In practice, the real advantage is reduced room interaction - and to achieve that, the speaker should be positioned further out into the room so that more of the room area falls within the cardioid’s rear null.
If we assume a fixed room size and listening distance, soffit-mounting a speaker and moving the listening position forward to maintain distance does improve LF directivity control, but it also maximises the amount of room area excited by the speaker. It’s really a balance between the direct and reverberant fields. The same trade-off applies to conventional speakers above the baffle step frequency, but it becomes more pronounced with mid-LF cardioid designs. TLDR move cardioid speakers out so more of the room is within the rear null.