"failed to properly consider" is correct and can be used in written English.
It is typically used to express that someone did not give enough thought or attention to something. Example: The company failed to properly consider the potential consequences of their new marketing strategy, leading to a significant loss in profits.
The whistleblowers have also lodged an appeal, arguing the trial judge had failed to properly consider how their actions had been taken in the public interest.
In 2015, the Supreme Court dealt a major blow to the Obama administration's efforts, saying U.S. officials failed to properly consider economic costs related to their proposal.
The Greenpeace and Nature and Youth complaint in the case described how the Government of Norway failed to properly consider rights guaranteed in the Norwegian Constitution, Norway's commitments under the Paris Agreement, and the licenses' staggering environmental effects.
Thales' chief concerns were that the report contained inaccuracies and failed to properly consider the local economic benefits of the project — including 200 factory jobs in Bendigo, and a further 200 jobs elsewhere — and export opportunities.
The appeals court, acting on a challenge filed by the United States Chamber of Commerce, said that the commission failed to properly consider the costs of the rules and provide critics an opportunity to dispute them.
Successive governments have failed to properly consider the way in which particular policies impact on different groups within society; equality impact assessments – while far from perfect – have started to challenge "one size fits all" accountable policy making.
However, GWAS analysis is both experimentally and computationally expensive and fails to properly consider the rare variants, i.e. individual-specific SNPs that have yet to be documented on a population scale.
A 2013 University of Maryland study noted that while some budget analysts consider commissioned officers to be more expensive than civil servants, that comparison fails to properly take into account the overtime hours for which Corps officers are not compensated.
Many banks and lending institutions owned foreclosed apartments and failed to properly maintain them, considering it "pouring money down a perceived rat hole".
According to the SEC order, Yahoo's senior management became aware of the hack days after the incident, but failed to properly investigate the breach or consider whether it should be disclosed to investors.
