Well, the CL seets is a good stats to base our opinions on, because it's not just that it involves like 7 teams every year, but also that it's based on more than 1 year, 5 to be exact.
However, the problem with bringing this 4th CL spot, is that Germany pretty much won it through UEFA cup. If we look through last 5 years and CL knockout stage, there has hardly been anyone from Germany there. Besides Bayern, I think only once there was a team in knockout stage (I think Werder a few years ago) ? I might be wrong here.
But I'm pretty sure I'm right, that if we take all the italian teams playing in CL knockout stage in last 5 years, and all german teams, Italy will easily win in this "competition".
Now going to my original point. Since the time UEFA games are counted as much as CL games, Germany started to gain points, and I'm not taking anything from them, but it is a known fact, that italian teams just don't care about UEFA cup. Couple years back, like 10 or so, teams cared more about Serie A games, than UEFA Cup games, and back then when UEFA games were counted differently to CL games, Italy still was coming on top. But ever since UEFA changed the rules, the germany started to gain more points, because german teams don't lay off UEFA Cup games.
That is the reason, that we shouldn't bring up those stats. If Italian teams indeed shown, that they DO care about this cup, we might bring this as some valid point after couple of years, but I don't think we're at this point yet, if we'll ever be. I do even remember, italian officials demanding the clubs to pay more attention to UEFA cup games.