Comparing the relative effect on a low vaccination coverage country with a high one seems slightly irrelevant no? i.e. delta variant is much less of a hospital

Comparing the relative effect on a low vaccination coverage country with a high one seems slightly irrelevant no? i.e. delta variant is much less of a hospital burden in a high vaccinated country, therefore the relative danger of omicron could be much higher. If omicron was truly 'super weak' - wouldn't you expect to see the SA numbers go down?