No.
If you only care about MLAT results you can make their piaware connect to your dump1090 as well.
This graphic is not perfect but maybe it helps you:
(https://flightaware.com/adsb/piaware/about)
30104 of your dump1090-fa is just a universal input port.
You can check this post how to use socat:
(High rise antenna? - #46 by wiedehopf)
(In that example the input port was changed to 29999, the data is being forwarded from the computer pi to localhost)
You can connect to the port 30005 to get non-MLAT results from dump1090 and 30105 to get MLAT results from piaware.
I suppose instead of using socat you could also configure piaware to feed MLAT data somewhere else:
sudo piaware-config mlat-results-format "beast,connect,localhost:30104 beast,listen,30105"
That is the default you can add
beast,connect,othercomputer:30104
to forward the MLAT results.
othercomputer could be your dyndns address.
Then you only need to forward 30104 from your router to your pi where you want the mlat results.
I guess that still counts as personal use? (Check FA policy on mlat results please)
Good luck.