[Xylakant]

The article stipulates that the contract dates back until 2002, about 11 years before the Snowden allegations came to light. So while they could have switched afterwards, the contract may have had a longer contract period, locking them in for a while. You also can’t just switch the identity provider for your national ID system, such a move would need at least some lead time.

[pisipisipisi]

The contract has been renewed several times, IIRC 2006 and 2010 Reference: (in Estonian) https://tehnika.postimees.ee/4358415/gemalto-kaebus-politsei...

[gmueckl]

That was all well before the Snowden relevations.