[4] The proposers, the majority opposition coalition of the Kuomintang (KMT) and Taiwan People's Party (TPP), and supporters of the bill claimed that the amendments were necessary to fight corruption and increase accountability.

[6][7][8] The DPP, who now leads a minority government under president and party leader Lai Ching-te, civic groups and some legal experts opposed the bill based on its alleged unconstitutionality, vague definitions,[9] infringements of civil liberties and national security, and apparent targeting of the incoming administration.

The DPP alleged that the probe was improper due to previous investigative efforts, which Mirror Media complained were disproportionate compared to the approval process that other channels had.

[17] On October 25, the Constitutional Court annulled the "Contempt of the Legislature" Act and new legislative powers to investigate government officials, preventing probes into the Mirror TV case and past egg imports from proceeding.

[27] When the bill passed, angry DPP lawmakers threw blue and white (colors associated with the KMT and the TPP respectively) garbage bags at the opposition parties.

Researchers pointed out that compared to the Sunflower movement, fewer university students participated in Bluebird because the outcome in 2014 would have affected employment opportunities in Taiwan, whereas the 2024 conflict between the different parties was largely politically driven.

[28][29] On 20 May 2024, a group of international academics, journalists, former officials (including former American Institute in Taiwan director William A. Stanton) and other critics of the reforms released a joint statement that said the proposed bill granted the Legislative Yuan "excessive power compared with other constitutional democracies and has not been allowed sufficient review by the public or DPP lawmakers.

"[8][30] Overseas Taiwanese in the United States organized a campaign to promote the Bluebird Movement in support of the protestors, raising US$80,050 within three hours to feature a billboard in Times Square in New York City.