Everybody will immediately understand that the name change is merely done as an attempt to gain marketing potential.
I wouldn't be so sure about that. This poll is the first time I've read of anyone suggesting that improving P6's marketing would be a driver behind changing its name. OTOH, there have been calls for years to change the name for entirely different reasons: to avoid the implication that it's just the latest version of Perl, to free up 6 as the next major release of Perl, etc. If the name had changed today I would have assumed that it was for one or more of these long-discussed reasons and not anything to do with improving the P6 marketing effort.