I'm not trying to endorse the fact that a comparo between a 2er and a 12C makes sense. I'm trying to use it as a means to highlight why this comparo also doesn't work. Granted, I made hyperbole of the situation to get the message across. My point was that different marques have different entry-level sedans. Merc has the CLA, but Jaguar has the XF (or XE soon). They are both, therefore, entry level luxury sedans (for their respective marque!), but they don't compete against one another.
It's similar how the S-Class is being compared to the Ghost. However, Mercedes offers no direct competitor to the Ghost right now. The closest thing they can compare to is the S from Mercedes and the Ghost from RR. On the other hand, the C was the closest thing they could have compared to the 3, not the CLA.
The equivalent Merc competitor is a C-Class. This has always been true, and always will be. The pricing of the CLA is another issue, but clearly the CLA isn't held to the same standard as that of a class above. It wasn't conceived to be on the same level, and as a result, results in a poor comparison.