There is a ground signal, MP1209 IIRC, on the Up Salford line (towards Salford Central) which can be used to signal trains back onto the Up Bolton line ('through line' next to Crescent), behind the main aspect signal there, from where the train could be signalled correctly towards Deansgate. Involves changing ends twice though, double the 'walk of shame'.Looks from RTT as though it may have used the through road on the second attempt.
It would always be preferable to make a signalled move than an un-signalled move where possible.