The "Myth" of the "Dacian Falx" as a super weapon

[Dan Howard]

I dont think any other sword can be used in a similar way as the Falx (or sometimes even the Sica).

No. Some swords are actually suited for use on the battlefield.

Due to its curved shape (like a claw/sickle/schyte) it can be used for piercing, slashing and cutting/severing/dismembering

All swords are used for these things.

and can hit someone behind that scutum even without cutting thru it, just bypassing it from above.

This is probably the only real advantage of the falx.

I dont know if you ever used a schyte, especialy a sharp one, to see how easy is to cut using just a small circular move.

plenty of blades can cut easily with just a small move

The shape is made for improving cutting abilities, much better then any right type of blade (as Gladius) and a stronger, thicker blade used for a sword with a hard tip, can easily pierce even thru metal

Pure speculation. Where are the imperical tests that demonstrate this?

Romans didnt adopted such types of curved swords, because their already old and prouved fighting style worked well, they was use to it, and they didnt had any enemy against who to use them. This swords was good especialy against opponents protected by large shields and fighting in close ranks, and Romans doesnt had anyone like that at that point.

Romans faced both Gallic and German shield walls with full height shields.