When the bar is "You get nothing. Zero. Goose-egg." its fairly easy to clear.
The form is significantly shorter than the US one.
A big part of the US tax game is giving you a relatively high base rate and then sending you hunting for deductions and credits. One of the upshots of the Trump Tax Cut has been to raise the standard deduction so high that most of those deductions and credits are worthless. So the form is deceptively long. It's almost impossible to use your Schedule A for anything anymore.