There is no universal taste in the loglines either. I groan when I see questions as a part of the summary, particularly the rhetoric ones (what will she chose? Love or career? However would we know?) and don't like quotes. But tons of popular books use them and attract a huge following.
I use a quote instead of logline on Tapas (unlike Wattpad) because people responded enthusiastically to it.
Ideally, everything has to be top-notch. But, as a writer, I have infinite control over my logline, can change it as I see fit, but I have pretty much no control over the cover, unless I use Canva. In the end of the day, a writer is always at a disadvantage where the cover is concerned.