Was it a complete failure?
They didn't stick the landing, but it looks like they got test data from all the planned test activities. The explosion will prevent gathering some data from post-flight inspection, but other than that I doubt it has much affect on future development.
To look back on SN5/SN6 testing, they stuck the landings with those prototypes, but the prototypes themselves are now obsoleted by the new prototypes in production (up to SN16?!)
Seems to be a great benefit of this method that SpaceX is following with Starship: if you build hardware fast and cheap enough, you can afford some partial failures since you just put the lessons learned into the next flight in a few weeks.
And as others have said, it's either complete success-or-explosion that's expected in this area.