I went in to read the German law itself and it's basically only illegal if certain conditions aren't met and that is getting a counseling beforehand.
I think that's a bit of a far stretch and misleading to say it's illegal but rarely punished etc.
Also the headline is completely wrong, as it is already allowed to get an abortion up to week 12.
Here is the part of the legal text defining the requirements.
Section 218a Exemption from punishment for abortion
(1) The elements of the offence under section 218 are not deemed fulfilled if
1. the pregnant woman requests the termination of pregnancy and demonstrates to the physician by producing the certificate referred to in section 219 (2) sentence 2 that she obtained counselling at least three days prior to the procedure,
2. the termination is performed by a physician and
3. no more than 12 weeks have elapsed since conception.
People seem to have issues understanding the texts of laws.
It's only illegal if these 3 things aren't met.
I don't think these things are unreasonable at all