Are there Complex $NASI Bottoms when the Market is Dropping?

Yes. The first two orange boxes had Complex $NASI Bottoms followed by an upwards correction, during a downtrending market. These would have been the times to sell the TZA. TZA could have been held during the thick Red lines as the market was trending down. TNA could have been held during the thick blue lines as the market was trending up. TNA could have been sold during the yellow boxes (Complex $NASI Tops with associated downward corrections).