My understanding of the requirement for a new logo, and I could be totally/partially wrong is that the existing logo is unsuitable for the smaller screens of smart phones and tablets. The existing logo is degraded on small screens, whereas the proposed logo appears sharp and defined. A case of horses for courses. You can try this yourself on your smart phone, assuming you have one, and compare the two images.
Technology is constantly moving forward, for better or worse, and we have to take into account the medium that Club members (and potential entrants) use to stay in contact with the Club. Therefore, if we're going to accommodate members with the latest (for the moment) technology, we have to ensure that what we provide is presenting the MCC to our advantage.
The logo has changed over the years; the existing logo is the current incarnation.
The proposed logo may not appeal to everyone, but there are other designs that can be proposed until we find one that does the job and appeals to most of us. In a few years time, we could be looking at another logo because whatever logo we are using at the time is incompatible with the MCC micro-chip that's planted inside your skull

. Technology will have moved on.