We are quickly approaching my limit of understanding, so it is going to be sketchy from here.
To my knowledge, there is no finer phase modulation than 1/4 wavelength shifts. So, from what I understand at this point, there would be no advantage to an antenna design more granular than 1/4 wavelength.
Well, if the phase shift is "larger", such as a phase shift at 1/2 wavelength, the 1/4 design will still receive that.
As far as antenna length is concerned, I could speculate, but I don't think I'm qualified. I have built antennas for Wi-Fi frequencies, but overall RF antenna design isn't something I'm qualified to discuss.