Shoddy (un)workmanship, period. All of the datacom statements of work I've seen include words like "plumb", "continuous", and "uniform appearance throughout".

And yes, the data/telecom guys are supposed to follow NEC. Here's quotes from ANSI/TIA/EIA-569A (Commercial Building Standard for Telecommunications Pathways and Spaces).

Quote
4.4.2.1 Minimum requirements
Minimum requirements for installed conduits, such as support, end protection, and continuity, are found in appropriate electrical codes.

And the most blatant violation of all:
Quote
4.4.3.3 Pull strings
Pull string or rope shall be placed in installed conduits,

James