Yes, it's as disgraceful as it is bizarre.
For the record, I snogged a date at a quiet time in the evening in GUBU about 3 weeks ago.
We were there for an hour and we sat at the bar. We only had one coke each. At one point, my date told me that he had never snogged a guy openly in bar before. So I dared him to.
It took him a little while to work up the courage but then we did snog, for about 3 mins, before coming up for air.
No-one said anything to us & so it should be. But what if someone had? It would have been terrible.
I think Colzz is right, it was atypical.
Carry on snogging, at any rate. Don't let the bastards in this life grind ya down.