dtgreene: One obvious issue: It's not open source. This means it can't be included in many Linux distributions (for example, Debian and Fedora).
Afaik, Chrome isn't installed by default in the vast majority of Linux distributions anyways (Firefox is the default browser instead), and it's Chromium that's in some repos. One has to go to Chrome's download page and get a .deb or .rpm file from there to install it. Many distros are also more relaxed in terms to using closed source software -Linux Mint used to include codecs until version 18, and the sole reason it stopped doing it by default and now needs a checkbox was so that the devs wouldn't need to build a separate codec-less OEM version, while afaik Fedora now has support for installing mp3-codecs by default. So, the way I see it, most Linux distros aren't so opposed to letting their users use Chrome if they so wish, and the situation isn't going to change as long as those .deb and .rpm binaries continue to be provided in Chrome's website.
dtgreene: That also leads to another issue: It can't (easily) be audited for security issues. If there is such an issue, then simply having it installed and viewing a web page could result in your computer being hacked.
Well, news about security flaws are written the whole time, but most of these flaws are somewhat obscure and don't affect all that many people. Thus the convenience of being able to watch ANT1's web archive trumps the worry of the 1/1 billion chance of my being hacked.
dtgreene: There's also the fact that some people, me included, consider DRM to be unethical in the first place.
I personally generally prefer not to go too much into ethics in regards to software (ethics is such a complicated matter...) which means that I consider DRM to be mostly unpractical, as in forces the user to go through many more hoops to enjoy whatever he wishes, and also basically takes away ownership from him, so that he isn't even able to access the product at all times (that's the part most veering towards the unethical). The Widevine DRM, the way it will be included into Chrome, will be practical more than anything -if someone wants to watch Netflix, or even the web archive of a TV channel that uses JWPlayer for whatever reason (like ANT1 that I mentioned on my previous post) he 'll be able to do so easily, without trying to look for workarounds, or enabling stuff into options. And while access to Netflix is paying, the access to the web archive of your average tv station is generally free, so if they're clueless and use JWPlayer, I shouldn't be punished just because my browser won't have that drm enabled by default...