LFE, Thank you for sharing that video. I spent some time trying to spot the a/c that landed ahead of you. Likely it was taxiing back on the ramp.
When I flew SEPs at YYZ, my instructor was emphatic about staying above the glideslope used by the big iron and landing past where the big iron touched down. The presolo exams at the time were big on wake avoidance.
When a 747 that landed ahead of you is making a 135 degree turn to a taxiway, you also want to stay above the jet blast -- which can be felt even from well above the top of the fin
Lets just call this a cheap lesson. If that likely Q-400 had been a good sized Boeing....