It's a regressive tax: https://taxpolicycenter.org/briefing-book/who-would-bear-bur...
1. all goods and services taxation is regressive.
2. VAT is better than alternative goods and services taxation methods.
Argument for removing goods and services taxation is one thing.
Argument for compensating good and services taxation to the poorest (as is common) is another.
None of these are arguments against VAT itself. VAT is harder to avoid and brings more money and allows lower tax rate all things considered.
In the source you provided look up the:
>Why is the VAT administratively superior to a retail sales tax?
There is even better way to offset the regression of consumption taxes. Hint three letters, starts with U.