But what I've seen hasn't convinced me not to buy one
I'm an engineer by trade, though not a mechanical engineer so I've no specialist knowledge of rifle design but that doesn't stop me wanting all the details before I make a decision, so you can imagine I looked into this before buying my R93 and concluded that there had been some "accidents" but that I could find no evidence of a design flaw in the rifle, in fact some of the "accidents" indicated just how far you had to go to blow a Blaser up, and this is supported by the video I posted earlier where the Blaser is clearly seen to be stronger than many other popular rifles. The few, maybe even one as I can't remember now, detailed reports of accidents involving Blasers that I read gave me greater confidence in the rifle rather than less as the mistakes made were significant and resulted in the most extreme operating conditions and the rifle performed well beyond normal conditions and most likely gave lots of indication to the user that it was operating well beyond its design limits before it let go.
I also watched the posts of the people who were making a big deal of the "Blaser blow ups" and concluded that they were not, generally speaking, reliable sources of information and, indeed, some seemed to almost be building part of their life around an "anti-Blaser" campaign. This is perfectly reasonable and they are entitled to do this, but I didn't find any information to lead me to consider that they were a reliable source, or more reliable than the design engineers, laws of physics etc. I'm not dismissing well founded concerns or strongly held opinions, but I am saying that I found they had no place in my decision making when it came to choosing a rifle.
The other point to consider is that everything will fail and everything ever built has something that will be the first part to fail. Some are saying that with Blaser this may be the bolt which will then come straight back at the user and this makes Blasers bad compared to other rifles. Then you do a bit of research and find that there is evidence of other rifles blowing up, and the bolt coming back at the shooter and there is actually video of it happening on the internet! If you go to all the trouble to blow something up it should come as no surprise to find that some of the bits fly off in directions you'd hoped they wouldn't.
So, all I can conclude is that having a rifle blow up is a bad thing and has the potential to end very badly. Blasers are very well engineered and constructed and so handle pressure and a failure better than most but if you push your luck then even a Blaser will blow your head off. Sometimes rifles, including but not limited to Blasers, fail and the bolt comes back at the shooter and this is very bad indeed. Logically the only information gained from my conclusions was that the only way to avoid blowing a rifle up is either not to own one, no matter who makes it, or to be careful when using it. I decided that the latter approach was for me and bought a Blaser.