IMHO it´s relevant AND helpful. A headline statement saying that 95% of all new builds in Spain are defective could equally correctly read “95% of all new builds WORLDWIDE have defects”.
It could be misconstrued and make owners/prospective purchasers think that there is something technically amiss with the Spanish building industry when compared with the remainder of Europe/the world.
Those of us who are in the construction industry know that´s not the case and so can put it into perspective which is surely helpful to laypeople?
Many people´s first ever experience of buying a new build is here in Spain and so they may not be familiar with the whole experience.
p.s. I´m referring to the actual building process, not the planning, buying/selling, legal processes!