Not at all.
(Representatives and direct Taxes shall be apportioned among the several States which may be included within this Union, according to their respective Numbers, which shall be determined by adding to the whole Number of free Persons, including those bound to Service for a Term of Years, and excluding Indians not taxed, three fifths of all other Persons.) (The previous sentence in parentheses was superseded by Amendment XIV, section 2.)
If you don't understand what this means, I can explain it to you.
I would like you to explain why they liked tariffs to do the job?
Maybe you can tell me what other good source of revenue they had at the time?
You are trying to wiggle away. OK, they liked tariffs because they wanted to protect American independence. See the tagline.
Do you care about American independence?