Still no distinction between occupied and blocked seats on all LH Group, BT, AY, NH and others. As one example, please take a look at OS394 BCN-VIE on 27JUL. Your seatmap shows in C cabin 1A 1C 1D 1F 2D 2F as occupied and only 2A and 2C as free. In reality as of now its only 1A 2D 2F are occupied. 1C 1D 1F are free and simply blocked for HON/SEN, 2A and 2C are free and not blocked.

Hope it helps and I do hope the differentiating between blocked/occupied will come back as a feature