Oil Pressure blinks after start, dealership says this is normal

#1
I just got a 2016 Corolla and I noticed that when I start the engine the low oil pressure light blinks momentarily (after the engine is fired up) and then stays off. The dealership says this is normal and the car is just doing startup check, however I have owned many cars (including another 2016 corolla in the past) and this has never been my experience. Can anyone clarify whether this is something I should be worried about?
 
#2
I just got a 2016 Corolla and I noticed that when I start the engine the low oil pressure light blinks momentarily (after the engine is fired up) and then stays off. The dealership says this is normal and the car is just doing startup check, however I have owned many cars (including another 2016 corolla in the past) and this has never been my experience. Can anyone clarify whether this is something I should be worried about?
I have a 2015, I'm about to head out to work. I'll film a startup of the dash for you and upload when I can so you can compare.

My maintenance light is on, struggling to find time to change my oil working 7 days a week lol.
 
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