You know what exageration is right Max? While it would not blow up like a nuclear bomb, other explosions are not out of the question.
Given the design of the reactor, yeah, it isn't merely exaggeration to suggest it has anything at all to do in any way with a nuclear bomb. It is dangerously horribly wrong.
Even the most dangerously designed reactors have absolutely nothing in common with the bombs beyond "there is radioactive shit involved" and like I said, a nuclear power plant is a box of rocks that make water (or salts/other liquids) hot enough to extract work via turbines and thermocouples and whatnot.
You insert stuff that slows down neutrons released as the rocks do their thing, this raises the rate at which other rocks release neutrons, you tweak this to get a stable reaction going, and this causes them to heat up.
All but some very early designs had failsafe functionality so the default state for the reactor is to shut down, possibly in a way that is harmful for the core itself, but never in a way that involves ever greater reaction rates.
Dramatic enough events or bad design flaws can cause problems IF the coolant system fails and the control rods aren't inserted somehow and in those cases you can get a meltdown, which again has NOTHING remotely in common with something like a nuclear bomb, it is literally just when the core MELTS down into and/or through the bottom of the containment vessel.
Not ideal, but lots of bullshit shows and games and fearmongering have given the impression wrongly that "nuclear meltdown" involves any sort of nuclear explosion.
A steam explosion or hydrogen explosion (if the water gets cracked by the heat as in Fukushima) can happen, and it is bad, but again, literally nothing at all like a bomb. It's a pressure cooker popping. If your water heater had radioisotopes and it burst you'd be worried about the steam and water everywhere AND the radioactive material being spread around, but your house wouldn't fucking blow up and take out the nearby city.
This has been a pet peeve of mine for decades now, I mean, it isn't like it is easy to make a nuke even if you have loads of enriched plutonium and uranium sitting around.
If you don't know how to arrange everything and perform the implosion/gun mechanism perfectly the best you can do is make a cool light show, probably start a fire, and dose the nearby area.
The various nuclear powers got really good at making all that shit happen properly and STILL had fizzles. There is literally no way under any set of conditions for a reactor to EVER undergo anything resembling a nuclear explosion unless you put an actual warhead in it and set it off.