The airport has cameras and pilots either taxiing out for departure for runway 23, or holding short of the runway, had to have seen what happened.
I agree, a possible wing tip strike seems suspicious to me.
Nose wheel is intact, to get a bounce ( FedEx MD11 Japan ) that high and out of control, I can’t see it happening without porpoising , breaking off the nose wheel and wrinkling the fuselage.
Here is the runway surface condition report when it landed. It wasn’t that bad.
RSC 23 5/5/5 10 PCT COMPACTED SNOW AND 25 PCT 1/8IN DRY SNOW, 10
PCT COMPACTED SNOW AND 25 PCT 1/8IN DRY SNOW, 10 PCT COMPACTED
SNOW AND 25 PCT 1/8IN DRY SNOW. 160FT WIDTH. REMAINING WIDTH
1/4IN DRY SNOW ON TOP OF COMPACTED SNOW. BLOWING SNOW. CHEMICAL
RESIDUE PRESENT
Here is the weather report issued at 19:00 universal time ( 14:00 local ). The plane landed at 14:12 local:
CYYZ 171900Z 27028G35KT 6SM R24L/3000VP6000FT/U BLSN BKN034 M09/M14 A2993 RMK CU6 SLP149=