"Did anyone ever think that people can show affection and love for eachother without a kiss?"
Sure, let's take all the straight kisses out of other musicals too then.
"Whether people like it or not, it makes some people uncomfortable and whether they need to learn to deal with it or not, if it can be avoided to make the show more enjoyable for ALL, why not do it?"
But why stop there? Let's make Seaweed in Hairspray white. It does make some people uncomfortable after all.
"I understand the show is about a gay man but a kiss isn't entirely necessary to convey that he is gay or in love."
Sure, it's better to convey things in a way that doesn't make anyone uncomfortable.
"PDA of any kind makes some people uncomfortable."
Again, let's take all the other kisses out of other shows, too.
"The gods who nurse this universe think little of mortals' cares. They sit in crowds on exclusive clouds and laugh at our love affairs. I might have had a real romance if they'd given me a chance. I loved him, but he didn't love me. I wanted him, but he didn't want me. Then the gods had a spree and indulged in another whim. Now he loves me, but I don't love him." - Cole Porter