Both failures could have been avoided by performing a basic test of each product before committing it to use on something that mattered. Yes, even with the finest gear in the world something can still go wrong. But using brand new, untested and untried products is tempting fate. Certainly less expensive than wasting film on a natural display that can't be repeated until next year. This is why you see them using what works even if it isn't the latest version.
Photographers use what they use for a number of reasons.
But, we use what works no matter what it costs. We use it because it is familiar and dependable. Both contribute significantly to better photos by removing the worry factor. Yes, anything can break or malfunction. But if you are using gear or supplies you aren't familiar with, how will you know unless it is a big enough failure that you can't miss it.