I mean, it's all Google, right? If Google analytics is de-anonymizing you in incognito mode, does it matter if Google build a back door into Chrome, or whether they just didn't develop patches in Chrome to plug whatever workaround it's own tool was using?

Furthermore, wouldn't a reasonable person expect when a company offers a product with a privacy feature, that at the very least it would provide privacy from trackers that the very same company controls?