To give some background, the Portuguese government failed to get the annual budget approved, the president dissolved the parliament due to that, and scheduled new elections that will happen in a few months.
Due to that the current government asked the leaders of all political parties to give urgent treatment to 7 diplomas / laws that are almost finished and should not have to wait until after the new elections to be approved. There is no secret move being made here, everyone knows that this is happening.
Regarding the "biometric mass surveillance", one of the 7 laws that where requested to have urgent approval was about allowing the use of video surveillance by the police. The wording of the law was a bit too vague and as such did not get approval from the National Data Protection Commission.
Also, it's worth to mention that the government can't approve the law by themselves and needs support from other (and opposing) political parties.
As it sits now the government has to change the wording of the law to be more specific and ensure that it complies with data protection laws (as in GDPR), and even after that the opposing parties are only willing to approve the use of body-cams by police, and the use of video surveillance to prevent wildfires (which are a major issue in Portugal).