The standard barrel connector protects against short-circuiting with a simple plastic ring. The magsafe connector requires a fucking microcontroller.
They also take the laptop with them then pulled by a kid or fell over on.
If there's a problem with the MagSafe, it's that the cable itself breaks after 12-18 months due to lack of stress relief, requiring an expensive replacement and inspiring people to buy $15 euro fire starters.
Complain about Apple being too cheap to hire some proper engineers to build the cable, not the brilliantly designed connector.