Lucky landings?

Yet again, in this wide-angle stitched Viking image, we witness a near perfect level landing on a clearly quite dense boulder field and the sky relatively bright. What are the chances of these Martian robotic probes making uncannily level landings on such uneven and rocky terrain? Surely at least some of successfully-landed probes ought to be tilted at an angle in relation to the horizon line. Also, oddly enough, no NASA lander's footpads - including those of Apollos' LMs - are imaged as being sat over a rock of any substantial size.... despite the surrounding terrain being often littered with them. And even more intriguingly.. with such a supposedly thin atmosphere - and even allowing for suspended dust - shouldn't the sky still appear very dark ( almost black), similar to the sky tone at many miles altitude ( representing 0.13 psi) above the earth? Are NASA sandbagging (ptp) with regards the ACTUAL density and content of the Martian atmosphere - or did early NASA image manipulators get it wrong on faked images from faked missions and therefore all "mars pics" thereafter having to tow the same line? * * * * * *All original observations by Michael St.Mark April 3rd 2009.