well, actually steroids are the best way to build up muscles and strenght (that's why they're normally associated with the increase of body weight, but it's only a side effect) and help to maintain aggressivness, all things very useful in all kind of physical activity.
and that's why they've been used for so many years as primary doping treatment, also in sports where weight classes can make things more complicated to be managed (people have to balance the increase of weight trying to lose more body fat as possible, even with extreme measures -here comes into play diuretics* and anti-diabetis medicines, normally used in association with steroids to compensate the side effect of becoming heavier).
that's why they're still used as of today, despite they're so easy to be detected even with a simple anti-doping check (just need a basic urine sample and it's not among those expensive checks you can make once every while, they can be performed multiple times by any lab around the world).
*they also have a cover up effect, helping human body to eliminate the banned substances quicker from your body (at least those substances that can be detected by a basic urine test, other things involving blood and hormons are just another story).
tbh, 2 results like that in the same team at the same time don't look promising at all. it opens up to more than one suspect of team doping, which could be very painful for the whole NOC.
I wish your athletes the best, but I fear it's gonna be a very complicated situation.