I do not care to go into a discussion on whether they should call it an errata or FAQ, to me that is bit potato/potato point.
The difference is that errata fixes the source of a problem in a way that keeps things consistent. Rulings that deny the actual rules create additional inconsistency.
Proximity Mines only blow up when overlapped during a maneuver. Boost and Barrel Roll are not maneuvers. But they'll set off a proximity mine. So what other effects depend on maneuvers, but might be triggered by Boost or Barrel Roll? All of them? Only template-based ones? Only damaging ones? Only ones that use markers with at least some red printed on them?
<shrug> Who knows? An errata which fixed the underlying rules would have been clear for the next time someone asks "What happens if I Boost over...?" Doing nothing at all would have made it equally clear. Instead, we get a rule with absolutely zero foundation for the "why", and that not only doesn't help us answer similar questions, it actively removes our ability to do so.
Luckily it doesn't refrain you (or I for that matter )to be making a mighty big effort to do