Opinion seems to be the fall-back excuse around these parts. While I can easily respect a difference of opinion, that's assuming the oposing viewpoint holds merit, meaning, has a logical explanation behind it.
True, so far as we know, Lasseter has worked mainly on projects which include PIXAR characters. However, rather than assuming a string of egoism, I would offer a different perspective: perhaps there is correlation, not causation. The fact the John Lasseter has worked mainly on projects with ties to PIXAR characters is not caused by egotism, however, there is a correlation between the PIXAR characters and the use of them in attractions. Over the last two decades, every PIXAR animated feature has been a success, for both PIXAR and Disney (as distributer). Therefore, it would seem most logical to use proven characters in development of attractions, thereby giving the attraction an advantage of advanced synergy.
I disagree completly with your first point; in fact, I would suggest that PIXAR movies have exhibited more of the "Disney Magic" than any other feature in the last few years.
As for the CGI movie argument, I personally don't see any effect whatsoever. CGI is no different from Hand-drawn, simply two different mediums for the same result.