Travel Spain-Poland

I had a scheduled flight on Sept. 18 to Wroclaw to start my PhD program.

Poland banned direct flights from Spain (https://www.gov.pl/web/koronawirus/informacje-dla-podrozujacych), so the only option left is doing transit on Franfurt (Lufthansa flight).

In the airport webpage (https://www.frankfurt-airport.com/en/news/information-on-the-coronavirus.html) it stated that quarantine requirement does not apply to travellers in transit through Germany. But in the Bundespolizei page there is some points I do not understand very well (https://www.bundespolizei.de/Web/DE/04Aktuelles/01Meldungen/2020/03/200317_faq.html?nn=5931604#doc13824392bodyText9). The point 3. is the problem, as far as I understand, Traveling within Schengen zone (to Poland) does not require an exemption from travel restrictions, or that is what I understand reading the webpage of the Polish government linked above.

Does this means I should have no problems (or will not need additional confirmations) with my flights?

Sorry if the question seems too trivial but I want to be as sure as possible. Thanks in advance.