Parent poster is less insightful than (s)he thinks (s)he is. However, I appreciate them taking the time to present the argument, so I'll take the time to try to provide a reasoned rebuttal.
Yes, the content companies are still going to continue to try to push DRM on the world, but that doesn't mean that it's:
(a) not fundamentally a broken design (see the many, many arguments elsewhere on the web as to why DRM is fundamentally a "security by obscurity" approach, possibly modulo uber-draconian TPM approaches),
(b) something that needs to be inflicted on *everyone* at the web infrastructure level &
(c) something to be passively accepted as inevitable.
If a large subset of web users want to watch DRM-encumbered "Gossip Girl" streams, they're free to use something like Flash or Silverlight that's added on top of HTML specifically for that purpose. Right now, as an end-user, I can choose to use or not use such things, but I don't want this baked into the HTML standard itself.
If someone comes up with a proprietary, protected media delivery system that's actually good enough in terms of performance to work for the general consumer crowd, then fine. If it's more stuttery rubbish like we have now, then so be it: it clearly doesn't cut the mustard anyway. Note that I type this as someone who only last night ran into exactly the problems mentioned here: the preceding ad on the website would play, but the video I wanted to watch wouldn't.
Stuffing everyone into the same DRM straitjacket at the HTML level just makes no sense from the user's point of view (but plenty of financial sense for the media companies, who can then impose restrictions on *everyone* at once, even if they have no interest whatsoever in GenericMediaCorp's output). Personally, in such a world, I'd probably just use two browsers anyway: one that doesn't support the DRM extensions for most of the stuff I want to actually do, & one that does, just for watching the occasional DRMed video. So it's functionally equivalent anyway, in that I have the Silverlight plugin installed, but I think I've only used it three times in as many years.
So yes: "please use other applications as necessary" *is* the better answer, as it at least allows users to vote with (the electronic equivalent of) their feet. The most obvious example of this is that the drop in Flash video popularity in the last few years can't be entirely unrelated to its exclusion from iOS devices, for example. A fragmented market for DRM on the web is a *good* thing for end users.