If you want the Pixel 2 XL, go for it! Honestly, these reports of blue tint at specific angles... Well, a lot of it is a combination of users with said issues versus media hype. And those media outlets have biases; and those always need to be taken into account. In fact, now that I think about it, I've seen way more news/media articles about issues with Pixel 2 phones than I have with iPhone X/8, etc. Now, that could either be because said phones don't have as many issues; or, again, because the media outlets are biased towards specific platforms.
Plus, users are more likely to report negative reviews/problems/feedback of products than they are to post praise reports or positive feedback; which vehemently distorts the population of "affected devices."
And this two-year Google warranty is a great customer service punch by Google to fix this issue. Google makes quality products, and every product line from every manufacturer will undoubtedly have issues of some kind at some point. Samsung, Apple, LG... Everyone seems to have their "turn." No phone is immune from problems, bugs, glitches, or hardware abnormalities; but what the phones' manufacturers do to combat said problems really helps them to stand out above the rest. Google has done a great job of that.
My friend actually just pulled the trigger on a 2 XL this past weekend, and also thinks the issues with the device are being over-hyped.
If you want the device, I think now is a really good time to grab one! You have a warranty in case anything happens; and Black Friday is right around the corner. Don't worry! And let us know what you decide!