Yep... is it just me or does everything on TechCrunch get glowing reviews? Apollo, Yahoo Pipes, Silverlight, and now Popfly... Arrington touts them all as the best thing ever.
Here's what I do: just scan the headlines on TC and go to the sites he links to and make your own opinion about things. Arrington and Duncan don't know what they're talking about and they just regurgitate the PR they're fed. Discount everything Arrington says... he's not a techie (he's a lawyer). TC was cool long time ago when there were no alternatives but these days, it's downright awful and there are a ton of better sites.
I switched to GigaOM as my primary news source and Om Malik is a lot more objective and he actually has a bullshit filter. It's tough to influence him since he's actually a real journalist. And he's also a friend of YC ;).
1) Perhaps he reviews stuff he likes. 2) There's a lot of incentive to say things are great in case they take off and you're looking for advertisers, connections, exclusive news, etc. Big companies like Yahoo and Microsoft are going to be around for a while and I don't think Arrington is interested in burning any bridges with them.
TechCrunch is more of a news site than a site for critical analysis. I think it's nice to give every website the benefit of the doubt, that everything will be fixed soon enough.