Soaps are watched by a massive variety of viewers, some will have no idea what the issues are about that are unfolding as part of their storylines, and others will see significant parallels in their own experience.
Because of this variety, it is an excellent platform to inform and educate viewiers under the larger umbrella of a fictional drama, and this can mean reaching people with information that they may not otherwise receive.
So if a short warning and an advice line bookeneding a drama helps to assist people who may not know where else to turn for advice and support, then i for one think that is a seriously small price to pay to have my viewing interupted for a few seconds.
If it bothers you that much AOG - record the soaps you watch and FF past the initial warning, and switch off before the last one.
Then everyone is happy.