Yeah, there is very little in that article I can say I would agree with. Interestingly, there was no poll for various elements discussed/proposed.
I've never liked the whole "draconic heritage" thing. Big surprise, look when that was blown up.
Kobolds are scaly little (3' tall) dog-like guys (which, yes they WERE portrayed with scales AND dog-like in 1e before later folks started feeling the need to "fix" them

)
...with little rat-like tails (NON-PREHENSILE!...fer cryin' out loud <where's that rolling eyes smiley when I need it?>).
They are dim-witted but sneaky/cunning and prone to PRIMITIVE/SIMPLE traps (which can be mechanical...tripwire that looses a set of spikes that drops down from behind some cover is mechanical, but not complex. "Mechanical traps" does not equate -nor even suggest- things en par with a "pharoh's tomb"

) ...dangerous in large numbers and anything from a nuisance to comedic relief in lesser numbers.
What's the problem with that? Where's the need for yet ANOTHER look for kobolds in D&D? There's concern for how nimble their hands look or the quality of their clothes? Why, exactly, is whether their tail "matches" their scaly or furry or leathery looking skin (take your pick, they've had them all. I prefer a scales AND furry look myself.) something that needs mulling? D&D has plenty of mangled mish-mashed chimeric creatures.
I am becoming disappointed that the more 5e articles I read, the more I find myself at odds with the attitudes/opinions/preferences expressed.