This is a "trimmed down" version of Silverstripe's ModelAdmin, the differences being:

• Import, Export & Print functionality has been removed
• Filtering has been removed
• By default, column sorting has been disabled

• SilverStripe 3.0+

class MyDataObject_ModelAdmin extends SimpleModelAdmin {
	...
	public function canView() {
		return Permission::check('CMS_ACCESS_CMSMain', 'any', $member);
	}
}

Whilst ModelAdmin does inherit the model permissions, your extension of the SimpleModelAdmin requires it's own canView permissions as this does not add a separate entity into the CMS Access security section.