You can straight set this block to eliminate those side and corner triangles in every block and then set the whole quilt on point...WAY fewer triangles to deal with!
The following graphic may help visualize what I mean.
The green lined block on the far left is the original block.
The red lined block is straight set peicing.
The heavier blue lines show how the blocks can be separated by "sashing-like" piecing (not everu block would have this added) to achieve the setting like the original.
Your finished quilt will look the same as the original after being pieced this easier way.
Jan in VA