Politically it matters in that it means software patent laws are broken and punish the creators of software.
But I don't think Debian should regard some software patents more highly than others and refuse to distribute some software because of those. That gives third parties leverage to make the distribution much less useful (for example by selectively crippling multimedia on desktops), without breaking the illusion that the law is really applied.
If these parties tried to mount actual legal challenges, they would have to spend money, raise awareness of the law, publicly behave in an anti-competitive manner, and risk losing some of their patents for, at most, an interdiction of some packages in some jurisdiction. I don't see why Debian should give this away.