If these messages are true, then they can be considered a great success of Iran and its allies, primarily Hezbollah itself. Since the beginning of the Syrian conflict, the Iranians had to use air transport to supply weapons militants of this group. This method was easily tracked by Israel, because the Syrian airfields landed only a couple of Iranian aircraft per day.
Now, after the capture of Abu Kemal and the Syrian-Iraqi border, a land corridor has opened for Iran, along which it is possible to supply not only Hezbollah, but also the Syrian army. Convoys are extremely difficult to find and identify, which will add significant trouble to the Israeli military.