(But of course I guess this is not important... BG3 is going to have his own identity in game...)
The artists doing the banner actually tried out a bunch of concepts, specifically to avoid similarity to D:OS 2. However, not centring the logo would be an insignificant difference, and not featuring the characters/companions would mean not focusing on the party. Since gathering your party is a core part of the design, the cosmetic similarity was not as bad as other options.
Originally Posted by Delicieuxz
If Black Isle didn't think it right to call their cancelled 'Baldur's Gate 3' game Baldur's Gate 3 due to the differences it had with BG1 and BG2
And also the fact that they were not intending to make Baldur's Gate 3.