He's no more suspect in those areas than Oleksandr Teslenko, however, IMO - and they might be hurtling toward a showdown as the preeminent two Canadian-based undefeated young guns at heavy... Would be a shootout where either could be KTFO.
Kean has a shot to make it into the top ten. He's big and he can hit. Yes he has flaws ( not fast and defense is just okay ), but he beat an 18-2 fighter who can punch a bit.
There's also Mladen Miljas who is 6'6 8-0(8 ko) and just dusted off Dillon Carman for the Canadian HW title. Keans promoters are probably looking to set that one up next.