If they're only taking in $30k a month in fees than I would think they are not even making minimal profit.

They probably have a dozen employees.  If they pay them an average of $2,500/month ($30,000/year) then they're at breakeven on wages alone, never mind rent, utilities etc.

And they're in Calgary, so they're probably paying more than $2,500/month.

They would need to raise their fees or increase their trade volume just to survive. Makes more sense to buy bitcoin and sit around waiting for the price to go up.