Agree with the need not to editorialize, but that is indeed what the article is about. The entire impetus for measuring the performance impact of ad blockers is

Agree with the need not to editorialize, but that is indeed what the article is about. The entire impetus for measuring the performance impact of ad blockers is to disprove one of the two cited reasons for Manifest v3, namely that there are real-world measurable performance benefits to preventing ad blockers from intercepting web requests.