I'm not against larger blocks, I just don't agree with this kind of action particularly. If they know it's going to cause problems - which they've stated they do - then it's not a test then, is it. In which case, what's the point/benefit?
But with all due respect.
Bitcoin doesn't give a fuck about your opinion.
It doesn't need your agreement.
It is not a bug, it is a feature.
The benefit is to see if this plane can fly while shooting rockets at it and placing bombs aboard.
Bitcoin only has value if it survives it all.
Personally I can't get enough of those "attacks".