Waveform size inconsistency on 4 TEMPERA?

[plule]

Hello, while working on the ESPHome integration, I noticed that the 4 TEMPERA waveform arrays are shorter, where each row has 8 entries instead of 9:

#define WAVEFORM3BIT                                                                                                   \
    {{0, 0, 1, 1, 1, 1, 1, 0}, {1, 1, 1, 2, 1, 1, 0, 0}, {2, 1, 1, 0, 2, 1, 1, 0}, {0, 0, 0, 1, 1, 1, 2, 0},           \
     {2, 1, 1, 2, 1, 1, 2, 0}, {1, 2, 1, 1, 2, 1, 2, 0}, {1, 1, 1, 2, 1, 2, 2, 0}, {0, 0, 0, 0, 0, 2, 2, 0}};

Just like the other boards, it's however casted into a matrix of 9 rows and used with the same assumption. I think the missing values end up being zeroes:

#ifdef WAVEFORM3BIT
    uint8_t waveform3Bit[8][9] = WAVEFORM3BIT;
#endif

Is it something to be worried about, especially for the ESPHome integration where I added the leading zeroes?