You greatly overestimate its significance. The benefits are roughly 1% of the GDP. In 2023 Poland netted 8.2 bn€ [1]. The GDP was 751 bn€.
[1] https://www.pap.pl/en/news/poland-largest-recipient-eu-funds...
1% of the GDP is a considerable amount of money. The GDP is not a country's profit, not even its revenue. If we stick to 2023, Poland had a budget deficit of 5% of the GDP, which makes 1% a very welcome gift.
You are naming a year outside those he named, it might influence significantly the result.