What I would really like to see is how many times the Leafs have had a guy up for a suspension that received less than what was expected or let off completely. And does it not seem odd that the "softest team" in the last decade...is even in conversation for being one of the most heavily suspended over that time period? That simply doesn't add up.
To your latter point, I guess I need to go through the whole league then eh to show why it's not really an outlier eh?
Ok then.
Anaheim: 1
Arizona: 5
Boston: 10
Buffalo: 6
Carolina: 1
Columbus: 4
Calgary: 7
Chicago: 2
Colorado: 6
Dallas: 2
Detroit: 6
Edmonton: 10
Florida: 6
LA: 6
Minnesota: 6
Montreal: 9
New Jersey: 3
Nashville: 8
New York Islanders: 2
New York Rangers: 4
Ottawa: 7
Philadelphia: 6
Pittsburg: 2
Seattle: 3
San Jose: 9
St. Louis: 6
Tampa: 8
Toronto: 8
Vancouver: 5
Vegas: 8
Washington: 12
Winnipeg: 7
In total, 185 suspensions in that timeframe, of which the Leafs accounted for 0.04% of all suspensions league wide. If all Teams had an equal number of suspensions, their share would be 0.03%, so slightly above average.
There are 18 other teams that are +/- 2 (0.29 suspensions/year) suspensions compared to the Leafs, which is certainly more than half the league. That number only grows if we open up the range. In other words, they're in the upper third by pure numbers, and lumped in with ~2/3 of the league in close comparables.
The statistical outliers here are the highs and lows. Wilson put the Caps on a Suspension speed run, so there's some context there.
Perhaps another interesting question is why Pittsburg only has a 0.011% share of league wide suspensions over this time, but that leads me to another point:
It's ultimately hard to make any sort of argument for suspension parity in the league - suspensions are levied on specific plays that may or may not happen to a given team in a given year. Even the Leafs had non-suspension years within this timeframe! So any notions of parity, fairness or equality in levied suspensions needs to go out the window.
As for your first point, it's impossible for me to say, and I have not found any statistical analysis that provides meaningful insight.