I think more 'offbeat' names are becoming a thing. I know people aged 19 to 33-ish who are called
SKY (also know a couple of kids under 10 called Sky, I think it was a name from Breaking Bad.)
SUMMER (all 15/16 to 25.)
BLOSSOM - she is 23 and hates it and makes everyone call her Olivia (her middle name.)
Some flowers sound nice as girls names, some others hmmm... not sure.
Daisy, Rose, Lily... Yes...
Buttercup, Tulip, Daffodil.... Not so sure about them, but the more I think about it, the more cute TULIP is sounding. 
And Pancake and Swizzle... are people having a laugh?! 
As someone said upthread, posters can call people judgy, but employers WILL look at a name that they class as daft. It shouldn't be this way, but it sometimes is..........
@OwlBeThere
'Pixie' is not Pixie McKenna's real name.. Ditto Englebert Humperdinck! I thought you'd have checked before posting!
Condoleezza Rice is an American woman, with parents of African origin, so it's not that odd for her to have a rather exotic name. If it's some white kid off a council estate in Telford or Crewe, it is going to sound a bit daft. Socratis Otto is GREEK, and Heston (as in Blumenthal) is not that that weird a forename.
So your 'examples' are not great.
And like a few others, I also know about half a dozen ladies who were born and raised in Nigeria, Ghana, and Namibia, with unusual and exotic names.... Peace, Patience, Precious, Harmony, and Beautiful. 2 of them are doctors. (GPs.)
As a number of people have said, it's not that weird for them to have these names.