Womb Raider - S4-E21
Continuity mistake: When Phoebe gets a stomach cramp in Detective Miles' office, she doubles over in pain. In the next shot, she's standing up straighter than she was. Her right hand also moves from the chair in front of her to her stomach. (00:22:55)
Womb Raider - S4-E21
Continuity mistake: When Phoebe talks to Morris in Detective Miles' office, her hands change position instantly between shots. (00:22:45)
Answer: That was a mistake in the series.
Also, the episode is called 'Babies First Demon' and this alone tells us that it's Wyatt's first time in the field (so to speak) and as the sisters say, they've done a good job of clearing up their own magical messes so far. Nobody really knows how advanced Wyatt's powers are, or will become. That's why the cleaners appear, to nip things in the bud. The Cleaners didn't want to chance that the sisters could clean Wyatt's magic up, just incase they couldn't. Therefore intervening themselves, just in case.