it's not a pile of junk, you may dislike it but it's not that abd a mech (could use more armor granted, if I could I'd swap out the AC 10 for a quartet of Medium Lasers and some heat sinks) and
It is a slow, melee-centered 45 ton mech with thin armor. That is a terrible combination of attributes.
yet again, you're not thinking, quite frankly there is no decent modern comparison because Lostech isn't a thing in real life. the Hachetman is the first new mech design in CENTURIES, that's a big deal for what it symbolizes.
First new mech design in centuries? Not in-universe, it isn't. Even if you don't accept the Marauder II as a new mech (when it is a full class heavier) there is also the Merlin and very shortly thereafter the Cataphract.