I would not call the comments so far 'slander.' Speculation based on limited information, yes.
If you put something out in the public domain it will become the subject of speculation - especially when it gets discussed on a 'rumour network.'
Having said that, you are quite entitled to your valid opinion regarding the situation.
If the trim was indeed full nose up at the end of the flight the pilot would no doubt have had his hands very full flying a go-around and subsequent circuit in that condition. Does the Cirrus have a backup manual trim?
I hope for his peace of mind (and everybody else) they come up with a suitable explanation. Sometimes software companies and manufacturers get involved in these cases. I wonder if Avidyne, Cirrus or anyone else is getting involved?