None of that is news. What would be news would be a success but afaik they haven't managed to do so to date. All satellite operators face these challenges and none of them see that as an extra burden but basically the kind of thing that you should expect if and when you start operating this kind of service. Inmarsat terminals have a ton of tricks up their sleeve to deal with signal jamming and other attempts to interfere with the downlink/uplink.

If anything, SpaceX/Starlink has an easier time of it because their signal levels are much higher and the satellites can use phased arrays to pinpoint the receivers (in fact, they have to because they aren't geostationary and very low).