In general I agree with the point you are making, but if you will indulge my "well actually..."
From to the Range Commanders Council Range Safety Group, 2010, summary of FTS requirements:
2. produce a small number of pieces, all of which are unstable and impact within a small footprint;
And also another requirement relevant to this particular video where the spent booster clearly had uncombusted carcinogenic hypergolic fuel when it hit the ground:
3. control disposition of hazardous materials (burning propellant, toxic materials, radioactive materials, ordnance, etc.);
From to the Range Commanders Council Range Safety Group, 2010, summary of FTS requirements:
2. produce a small number of pieces, all of which are unstable and impact within a small footprint;
And also another requirement relevant to this particular video where the spent booster clearly had uncombusted carcinogenic hypergolic fuel when it hit the ground:
3. control disposition of hazardous materials (burning propellant, toxic materials, radioactive materials, ordnance, etc.);