They disable MCE and set the power/current limits explicitly to be sure what they are actually getting. When you enable MCE, it silently changes the "auto" behavior of all the power/current limit settings. Problem is, you can't see what you're actually getting with those auto values. Or even confirm which ones are being affected.
In general I find this a major annoyance with all the boards. If something is "auto", I'd still like to know what value is actually being chosen. Especially when setting one parameter silently changes the "auto" values of other parameters.
