Easy, you already identified the root of the problem: "product guys don't like to wait". Means you're in a company run by marketing/sales-people caring only for their commissions and next quarterly bonus, not quality-minded people who understands the business of building software. Probably you don't have the power to replace/educate those guys. That leaves you two options.

1. Apply for better jobs elsewhere. You can be a bit picky since you already have a job. Easiest way to end your suffering ;-)

2. Be a professional and convince the rest of your team the same. My philosophy when managers want to rush _every_ release out yesterday regardless of quality instead of just the occasional genuine crisis, is that their "average" instructions, however they formulate it, must be to produce a quality product. Ignore them breathing down your neck, throwing childish temper tantrums etc. They obviously don't know better. In the long run your way will provide them with more timely releases. Half a year from now they won't have less urgent planning, so you better have the code continuously in good shape.

XHTML 2.0 was abandoned before reaching recommendation status, it only got to "working draft" status, last update was 2006.