It's not as bad as it could be, and probably not too bad at all.
However, when supporting stuff on "dunnage", it's important that the slabs are "crisscrossed" Jenga Style.
I assume that he "zig-zag jacked the thing up there, and it should be realised that when doing that there is a longitudinal thrust that could cause the blocks in pic 1 to "spit" away from the wheel block