Things don't look like they'll be improving for GBP on a macro level anytime soon, and the algo generated a short signal for this pair on Friday's close.
It's true the RSI is under 30 here and many interpret that as "oversold" but in Spot ForEx "oversold" isn't really a thing, so it's sufficient that the RSI is under 50 to give an approximation of the strength of the move.
While a short does look appealing here, politics and sentiment move the pound quite a bit so risk management on an entry here will be important!