they are, most tech worker didn't know how cryptography works under the hood and yet you expect politician to know it??? nah its just intelligence agency make a request to parlement of some shit
In the context of a discussion where the two propositions are "they take bad decisions because they don't understand" or "they take those decisions by malice", I think the parent is trying to say "they most probably don't understand cryptography, given that most tech workers don't either and those politicians are less into tech than tech workers".