The phrase "welcome distraction" means something that interrupts what you were doing, but is appreciated because it provides a pleasant break or relief from your current situation or thoughts. Full definition
At the same time, the companionship a therapy pet provides can be an incredibly welcome distraction from a person's illness, and stop them thinking and worrying about it. (petpeoplesplace.com)
These missions were welcome distractions from the core gameplay, and I'm actually shocked that they wasn't expanded upon. (gamecritics.com)
Clocking in at around six minutes each, the episodes are perfectly portioned as welcome distractions for when you're avoiding all those midday work emails. (thenewbaguette.com)