See, I don't get the "oh Saw was built by now, therefore it will be late" arguement at all...
Different rides, different construction styles, different locations, different weather... Just because one was built a certain way, doesn't mean that every other Gerstlauer will be, especially when different external construction companies are being used...
If we're gonna compare, why not compare to Takibashi? That's the closest example to a large scale multi-looping Gerstlauer we have, and that was built in two weeks or sommat daft...
I guess it's just a mixture of enthusiasts wanting Towers/Merlin to fail so they can complain, and a few who are just literally hitting the panic button because of how they think ride (or any form of) construction works, and as it's not working in that manner, it won't be built on time...
I'll still be preparing the humble pie for March though... Even if it's for me, because I feel optimistic that just cos it's not at a particular stage in comparison to another ride doesn't automatically mean it won't open on time as scheduled...