Sure, I don't mean that anyone would look at the Latex in between. I'm just saying that if tool x directly calls tool y to do the job then might as well use tool y directly.
Since hammers and nails are a common tool-workpiece example…consider the nail gun.
Theoretically you can drive nails with a 22 caliber blank cartridge without making the “call” through a nail gun. But you won’t finish laying shingles as quickly and easily…
Or to put it another way, there’s a reason assemblers are almost always better than machine code and compilers are almost always better than assemblers for the ends people care about.
I mean why use Latex at all when you could write your own typesetting language? Maybe because you are not a knuth.
Of course Latex gives you fine control to hand tune the engine…but that doesn’t seem like what the OP is looking for.