The motive was to apply for 50/50 with an expectation to negotiate down during proceedings to 5/9 overnights, so daughter simply sleeps at my house after our teatimes instead of back and forth on a school night.
OR
that Court would do a well known "give each party a small win" and award somewhere in the middle (ie. 5/9 overnights).
The CAFCASS report you quote doesn't actually decline your request. Rather than attack the CAFCASS report, it might be better to present your case well and the reasons behind it and use the report as one that is not against the request in any material fashion.
explain how, your daughter staying with you after tea, gives continuity and is also better for her, as she will be tired and would be better for her if she was allowed to settle down for the night, rather than have to get ready to go to her mothers.
Ask the court to consider the mothers motives for objection, are they valid, or just unreasonable, or is it a money thing ?
Dig out the parts of the cafcass report that are in your favour, ignore the rest.