They are definitely setting it up for a policy fight on 5.4.10 of OPA 405:
5.4.10. On Midtown Mid-rise sites, additional storeys may be considered without an amendment to this Plan, provided the applicant demonstrates to the City’s satisfaction that:
a. there will be adequately limited shadow impacts on any public street;
b. the additional storeys fit within any required angular plane and will be progressively stepped back from adjacent areas designated Neighbourhoods, Parks and Open Space Areas and any side streets; and
c. additional storeys will be stepped back from the street to minimize its appearance from the street.