Hola.
I don't think it's specifically because of the Starlink connection, I use it too.
Paratext Life will cut out if the connection is lost. It would be worth knowing if he has problems with other types of situations that need constant connection, such as video calls. If he feels that, for example, video calls are constantly cutting out, even if it is only for an instant but it does happen repeatedly, then yes you can think about the connection and check it.
I think that only in case he does not have any problems with other types of connections would it be worth checking Paratext.
Pepe.