It happens not infrequently on the internet that one knows someone will misunderstand one's words, and yet does not pause to enlighten them about their mistake, because one simply does not care enough about the person who is wrong.
Sure, but the cleric has ten minutes to try and get information out of you, with the threat of death hanging over your head. That's a significant amount of time in which to ask the questions they want answered, and to do so with many different phrasings in order to bypass any evasions you set up, especially given that they can
ask whether you are being evasive. If you go silent, or if you look like you're choosing your words carefully, they can just kill you.
There's no such thing as a perfect legal system, but this spell gives you the tools to get very close. Weaseling your way through an entire ten-minute interrogation would be an unbelievable feat, whether or not it's technically possible. Of course, the administrators may also become overconfident in their infallibility, and not apply full rigour to their interrogation; that's mostly down to the availability of clerical spellcasters in government, and whether casting a spell for interrogation ever becomes routine enough of a task for them to get bored with it.
There are other workarounds, yes. Legitimate insanity, of the variety where you hear voices, might give you more freedom to choose which questions you want to answer. Of course, if anyone suspects that,
they can just kill you. If they determine you're under some magical effect, then they can take the appropriate countermeasures to end that. It should go without saying that any
non-sanctioned spellcasting within a court setting would be grounds for death.
The spell is less useful for adventuring clerics, in the field (or dungeon), who may not be trained in proper interrogation techniques. If you choose to play that out at the table, it might be possible to fool an NPC, or even for an NPC to fool a player who isn't paying attention. Or the DM could always say that the spell simply doesn't work as well as it is described, for whatever reasons, because they don't want to accept the implications of inflicting cheap veritaserum on a Lawful society.