I did wonder if these ships have a pilot aboard when going through the canal.... aparantely they do .
.....I imagine he's still filling out his incident report
Yup, pilot required for canal transit. Can't be entirely sure but, when the ship takes on a pilot, the captain takes a back seat, as it were, while still remaining on the bridge. But, in the event of an incident, be it allision, collision or whatever, it is the captain who shoulders responsibility. As an aside, ships master can gain Pilot Exemption Certificate, when qualified, to take his or her vessel into or out of port, without taking on a pilot.
Moving the MV Ever Given is one heck of a task. You cannot just take weight off any old how, as there's the risk of damaging the Hull, with the very real risk of breaking her back. The first thing the salvor needs to see are the ships stability charts. Those will govern just how what weight is removed and how.
As to how the Ever Given grounded is not yet public information. A huge gust of wind has been blamed and, because of how much top hamper she has, that is a possibility. A distinct, but as yet not known for certain contributor may be what is known as 'Bank Effect'. Best you look this up courtesy of your favourite search engine, as there's quite a lot of reading on that matter but, because of the size of the Ever Given and the width of of the canal, it is a possibility.
There's also been reported, sudden power failure. Again, this may be a contributory factor. But it may not be a failure, as in something going wrong with the machinery. What can and has happened with other modern vessels, are false positives with the computerised machinery monitoring equipment. In one particular case, the monitoring equipment falsely recorded an oil pressure problem, and automatically shut down the vessels prime mover, with catastrophic results. It wasn't until it was too late, that the engineers discovered what had happened. In such situations it is like dealing with HAL in 2001 a Space Oddysey and you know what that was like.