en.wikipedia.org/wiki/Finlandization

The article correctly attributes the wording to Joe Biden, but it misdates when he said it.

An official U.S. government transcript identifies the remark as part of "The President's News Conference in Madrid, Spain" on June 30, 2022. In that transcript, Biden says: "He wanted the Finlandization of NATO. He got the NATO-ization of Finland."

A contemporaneous news report from Finland's public broadcaster Yle also places the remark on June 30, 2022, during Biden's press conference concluding the NATO summit in Madrid.

So the substance of the quote is accurate, but the article's date (June 16, 2022) is not.

This sentence overstates what Poroshenko did in December 2014.

Contemporaneous reporting shows that the December 2014 law abandoned Ukraine's neutral/non-bloc status and allowed a future NATO membership bid. It did not itself constitute a legislative move for Ukraine to join NATO immediately.

Radio Free Europe/Radio Liberty reported on December 29, 2014 that Poroshenko signed a law abandoning Ukraine's neutral "non-bloc" status, and that Ukrainians would decide on seeking NATO membership later, once the country met NATO standards. In other words, the law cleared the way for a possible future bid; it was not a direct legislative amendment "to join NATO."

NATO's own overview of relations with Ukraine places the stronger formal pro-membership steps later: it says the Ukrainian Parliament reinstated NATO membership as a strategic objective in June 2017, and a corresponding constitutional amendment entered into force in 2019.

So December 2014 marked the repeal of non-alignment, not a legislative amendment that directly made Ukraine join or formally seek to join NATO.