Says who? You could have a solid red and then a green right turn arrow AND have a pedestrian signal that would allow crossing. There doesnt seem to be any law preventing a pedestrian from crossing on a
right pointing arrow, given that the pedestrian signal is also showing a walk signal.
I'm no lawyer, but I looked up the relevant HTA sections I think would apply, please correct me if I am wrong. (link:
https://www.ontario.ca/laws/statute/90h08)
Green arrow
(14) Every driver approaching a traffic control signal showing one or more green arrow indications only or in combination with a circular red or circular amber indication and facing the indication may proceed only to follow the direction shown by the arrow. R.S.O. 1990, c. H.8, s. 144 (14).
Pedestrian — stopping at flashing green light
(24) No pedestrian approaching a traffic control signal and facing a flashing circular green indication or a solid or a flashing
left turn arrow indication in conjunction with a circular green indication shall enter the roadway. R.S.O. 1990, c. H.8, s. 144 (24).
Pedestrian — stopping at red or amber light
(25) No pedestrian approaching a traffic control signal and facing a red or amber indication shall enter the roadway. R.S.O. 1990, c. H.8, s. 144 (25).
Pedestrian control signals — walk
(26) Where pedestrian control signals are installed and show a “walk” indication, every pedestrian facing the indication may cross the roadway in the direction of the indication despite subsections (24) and (25). R.S.O. 1990, c. H.8, s. 144 (26).
You may argue that section 25 bypasses all of this and that simply "if it is red, you cannot cross", but then how do you explain the advance walking symbols that have been installed across the city in the past few years? The light is clearly red when the walk signal is turned on, and it only turns green after a few seconds. If the city is willing to be loose with that rule, then what is stopping them from implementing something similar?