In the article they mentioned timing chain wear, not the guides. As i said multiple times a lot of the VW 1.2 1.4 1.6 1.8 2.0 2.7 engines in europe (Most of them not deliverd in US) suffer from rapid timing chain wear.
The teflon guides are almost never a problem, most of them look like new even after 500k.
If the tensioner puts more force on the guide, the timing chain is pulled tighter around the crank/camshafts thus putting a slightly higher force on all the chain link pins where the chain links move around. This in combination with the already vulnarble timing chains on these engines might indeed increase the wear a litte. As i said there is no proof for it but i thought i might mention it because i never heard this before.