Recently, Vorsprung Suspension published a pretty interesting video making the case that shocks with a clevis link (above) or trunnion mount (right) could potentially accelerate wear due to the lateral loads the shock experiences when the frame flexes. Trunnion-mounted shocks connect to the frame with two widely-spaced bearings, making for a stiff connection. This means any lateral movement at the other end has to be accommodated by the shock bending. Clevis links increase the leverage over the shock, meaning a given lateral force is more likely to cause the shock to buckle or bind, making it unable to absorb bumps, or leading to the shock wearing out or even breaking.
Personally, I've seen several shocks misaligned in the frame, and sometimes visibly move side-to-side as the frame flexes. This does seem to reduce sensitivity, but I've only ever had two shocks fail - one was the notorious first-generation Cane Creek Inline DBair, and another was a first-generation Fox Float X2. In more recent years, however, shocks seem to hold up pretty well in my experience.
Trawling the PB forums, there are a few horror stories of broken shocks, but is it all that common?
What do you think?