As KT stated, people aren't slamming the Pres for saying "Hey, we need to tackle the deficit." They're slamming him for saying we need to tackle the deficit while proposing a budget w/ well over a $1T deficit which includes new spending not covered by his "freeze", said freeze coming a year after he blew the previous year's ridiculous amount of spending right out the window. People are slamming his words for not even being minutely correlated to his actions.
I'd love to see him actually become financially responsible but I don't see any way that happens; at least not in 2010.
I don't see where a one time $5,000 reduction in employee cost will do much to sway the businesses over to making that additional hire. It will sway some, but as LA states, the majority of companies that will take advantage of the $5k are companies that were going to hire anyway.
Basically, Obama's saying "hey, you were going to hire anyway, here's $5k; remember that name O-B-A-M-A in '12."