No not failure. Destructive engineering.
The Rocket in question is part of a line of Space X rockets that have been built and destroyed one after another on the companies dime. This was SN11 they are already planning this series through to SN20 with a major design change around SN15. That’s not even talking about the booster stage tests which would be BN1 was built but scrapped for BN2 set for this coming month.
This differs from the government engineering model which is to test everything for decades and launch it as bits and pieces on the tax payers dime. SpaceX is doing these at it’s own facility. Testing to the point of destruction so as that down the road they can offer a product that has all the issues ironed out. Since 2018 they started work on this hardware launching something every 4 months since 2019.
No it was a failure. Please look at the video, they were trying to land.