This is because Obama's entire life has been spent in relationship to Jewish/Israel hating churches, ministers and community. The only reason he has not completely undermined USA/Israel relations is that too many would undermine the democratic party elections in USA if he worked openly against Israel. Instead he chooses nothing. However: his version of nothing is as injurious as open hostility because it ignores the fundamentals necessary for long-term Middle Eastern peace.
Pakistan air strikes against Taliban kill at least 25 (Reuters)
from the article: Analysts on Obama's trip to Israel: low to no expectations