I think sometimes people underestimate the impact of injuries or absences
Take out the starting PG and the 3rd or 4th leading scorer on any team in the NBL, and they'll struggle for wins. Perth has played United and JJ's- potentially the best two defensive teams in the NBL. Surprise surprise, they couldn't put a score on the board. Yes, of course, Webster is one of the weaker starting PGs but still. Windler scored 14 last week against Perth and he's a confident shooter.
A fortnight ago Cairns were thrashed by 30 and headed for the bottom 2. Then they get Adnam back last week, then Armstrong this week, and suddenly they look like a top 4 team.
When Kenyon comes back SEM will look a little better. They might not look great, but he'll make a difference.