This just doesn't make sense

Somebody please explain this to me.

After months of dismal job growth, the nation's employers dusted off their help-wanted signs in March and added workers at the quickest pace in four years, swelling payrolls by 308,000.

Even so, the unemployment rate inched up a tenth of a point to 5.7 percent as more people were encouraged to start looking for work again but failed to find jobs, the Labor Department said Friday.

So, uhm, if there's all these new jobs, how come employment has gone up? And what kind of jobs are being created?

Employment was helped along by a couple of one-time events. The end of a supermarket strike in California contributed to 47,000 more retail sales jobs. Better weather after the February chill pushed construction employment up by 71,000 in March following a decline in the previous month.

But the economy added jobs across the service sector. Employment in health care and social assistance rose by 36,000. A rise in mortgage refinancing helped add 11,000 financial-sector jobs in what the Labor Department calls credit intermediation activities.

47,000 more retail sales jobs because the strike ended... Were those jobs that existed before the strike and suspended because of the strike, now just added back into the total? And the majority of these jobs are basically service/McJobs? Manufacturing hasn't added a single job?

I don't understand why we're supposed to be excited by this.