If you look at what Kilroy has shown to the community to garner support for One Paseo, I believe it significantly misrepresents the true nature of the complete project. Sure, building sizes are called out in overhead views, and there is an occasional rendering that includes a large tower in the distance, but the majority of the imagery provided to the community consists of marketing views of low-rise buildings and idealized street scenes. This article outlines my concerns.
Why does it matter if Kilroy has misrepresented the project to the community? Because the Community Plan Amendment Process requires significant support from the community to justify approval of the amendment. If Kilroy is really misrepresenting the project to the community, shouldn't support for One Paseo be considered suspect? After all, support for One Paseo should be based on a realistic representation of the entire project.
Here's a typical view that Kilroy shows of the project:

While the Kilroy view may be technically correct for this part of the central plaza, the vast majority of the project doesn't look anything like it. From Kilroy's picture, we get the feeling of a two-story development with an occasional tower in the distance. In reality, this central block has the only two story buildings in the development, yet most of the pictures show views of this central core, leaving out the residential blocks and the residential tower.
Here's a view of what the residential blocks might actually look like, taken of the La Jolla Crossroads development near UTC:

The picture of La Jolla Crossroads is more like what Del Mar Heights Road will look like with the completion of One Paseo. The picture shows a 5 story residential block, similar to the 4, 5 and 6 story buildings that will line Del Mar Heights Road.
Even in the DEIR, Kilroy has managed to provide views that minimize the scale of the project. The one rendering that might have realistically shown the impact of the 10 story residential tower, taken from the corner of Del Mar Heights Road and High Bluff Drive, conveniently crops out the 10 story tower!
The reality of One Paseo is acres of tall residential blocks that loom over the adjacent streets and block the views of nearby residents. The reality is a 10 story residential tower at the highest point on the property, where the top of the tower is the highest point in the development. The reality is a development that is totally out of scale with the surrounding community.
These articles are my opinion. If there are factual errors, let me know and I'll correct them!