Gordon_R
Honorary Master
Isn't this pretty normal when developing heavy-lift launchers, they're extraordinarily complex and unforgiving? Probably just R&D for them, can remember SpaceX going through the same years ago.
SpaceX used to do most of their test firings off-site. An explosion at a launch pad is much more expensive.
Only the latest generations of rockets use methane as a fuel (none of the Falcon series did). The vapourisation of liquid methane is rapid compared to kerosene, more like the BLEVE explosion in Boksburg.

