The photographers did chase her down the streets whenever she stepped out of her house during the few months she spent in Spain. They even took pictures of her at her grandma's garden. That's pretty much unheard of in other countries, not even the British paparazzis harrassed Diana's parents or siblings on their daily life. Diana, Letizia or Mathilde was/is the one who chose to marry their prince, not their parents or siblings. It seems that the Spainsh paparazzis were the only ones out there who didn't understand or didn't want to.
Anyway, the good thing out of this lawsuit is that the press no longer harasses Letizia's mother or grandpa during their daily life, that's already a 'win' for Telma IMO.