Yeah, all these amateur advices...
The ONLY proper way is to put proper cat5 or 6 cable in. If price of the cable is the issue, well how serious are you in your work anyway?
I mean, for less than 100usd you have 305meter of cat5e cable with connecters and a proper crimper tool.... If that is too expensive and you'd rather start 'playing' with all kinds of 'fixes' go to some other hobby forum to talk about these.....
thats a correct answer, but judging from his input - seems he dind had authority/right to do so.
you had point here, sure, proper cabling saved him from lot of headache but folks tend to be be bound to subordination/heararchy and aside you rude bravado sometimes even such decisions isn't up to common networking grunts.
just a guess. he may be really lazy as you suggested/implied, but more frequently i was saw terrified cablings in office buildings was cause anyone horrified idea to step up and ask for permission(nor there already cazualties of such attempts).
people had to deal with lot of Legacy stuff in Real world, sadly without SLightest chances to break and re-build something properly, sometimes. even self-employed and small companies do, sometimes.
and lot of Formal regulations/restrictions, suggestions, that sometimes had fuzzy legal status, but enforced heavily even at municipal level