N.B. OOo suffices for most of my business correspondence; I prefer (La)TeX/LyX for the more scientific documents.
Off course this can be fixed by "block redundancy" (like RAID does), "block recovery checksums" or old-fashioned backups.
Apparently the damage was limited to only one site... But similar hacks could be done on other vulnerable sites.
In other words, the variation in both categories is so big (more than a factor 10!) that one can not say either side is better with statistical relevance.
Doesn't look like it captures the OSS development spirit, to me...
But it almost perfectly captures Microsoft's view on the software market.
If you fail to plan, plan to fail.