Hmm, why? As I said, the cemetery has not been in use for a very long time now. Long enough that the corpses have probably rotten away completely, and nobody knows the people who laid there anymore. So I don't think anybody is going there for grieving.
The Wikipedia article itself mentions jogging as one of the uses, so I'm not making it up (at the same time it mentions "with due respect", and personally I also don't think jogging is "disrespectful"): https://en.wikipedia.org/wiki/Alter_Nordfriedhof_(Munich)#Pr...
Not everywhere, and real estate is precious. Near by we have a Chinese cemetery, complete with coloured neon lights, karaoke machines, outdoor fitness centre, and jogging track going through the tombstones. You don't want to get bored in the afterlife.
The Wikipedia article itself mentions jogging as one of the uses, so I'm not making it up (at the same time it mentions "with due respect", and personally I also don't think jogging is "disrespectful"): https://en.wikipedia.org/wiki/Alter_Nordfriedhof_(Munich)#Pr...