[TomVDB]

There were 2 versions of the Magsafe connector.

The bulky one on my 2007 MacBook had a much stronger magnet that the thinner one on my 2012 MacBook Pro.

People were annoyed when the thinner one got introduced because, indeed, they come off too easily.

It was another functional regression sacrificed on the altar of thinness.

[Reason077]

I believe this was also an attempt to address the fraying problem and make the MagSafe cables/connectors last longer. By decreasing the tension needed to release it, it would reduce stress on the cable.